bionic: rename aarch64 target to arm64

Rename aarch64 build targets to arm64.  The gcc toolchain is still
aarch64.

Change-Id: Ia92d8a50824e5329cf00fd6f4f92eae112b7f3a3

Conflicts:
	libc/arch-arm64/bionic/__bionic_clone.S
	libc/arch-arm64/bionic/__get_sp.S
	libc/arch-arm64/bionic/__rt_sigreturn.S
	libc/arch-arm64/bionic/__set_tls.c
	libc/arch-arm64/bionic/_exit_with_stack_teardown.S
	libc/arch-arm64/bionic/_setjmp.S
	libc/arch-arm64/bionic/bzero_arm64.c
	libc/arch-arm64/bionic/cacheflush_arm64.c
	libc/arch-arm64/bionic/crtbegin.c
	libc/arch-arm64/bionic/futex_arm64.S
	libc/arch-arm64/bionic/setjmp.S
	libc/arch-arm64/bionic/sigsetjmp.S
	libc/arch-arm64/bionic/syscall.S
	libc/arch-arm64/bionic/vfork.S
	libc/arch-arm64/include/machine/_types.h
	libc/arch-arm64/include/machine/asm.h
	libc/arch-arm64/include/machine/elf_machdep.h
	libc/arch-arm64/include/machine/endian.h
	libc/arch-arm64/include/machine/exec.h
	libc/arch-arm64/include/machine/ieee.h
	libc/arch-arm64/include/machine/limits.h
	libc/arch-arm64/include/machine/setjmp.h
	libc/arch-arm64/syscalls/__brk.S
	libc/arch-arm64/syscalls/__epoll_pwait.S
	libc/arch-arm64/syscalls/__exit.S
	libc/arch-arm64/syscalls/__getcpu.S
	libc/arch-arm64/syscalls/__getcwd.S
	libc/arch-arm64/syscalls/__getpriority.S
	libc/arch-arm64/syscalls/__ioctl.S
	libc/arch-arm64/syscalls/__openat.S
	libc/arch-arm64/syscalls/__ppoll.S
	libc/arch-arm64/syscalls/__pselect6.S
	libc/arch-arm64/syscalls/__ptrace.S
	libc/arch-arm64/syscalls/__reboot.S
	libc/arch-arm64/syscalls/__rt_sigaction.S
	libc/arch-arm64/syscalls/__rt_sigpending.S
	libc/arch-arm64/syscalls/__rt_sigprocmask.S
	libc/arch-arm64/syscalls/__rt_sigsuspend.S
	libc/arch-arm64/syscalls/__rt_sigtimedwait.S
	libc/arch-arm64/syscalls/__sched_getaffinity.S
	libc/arch-arm64/syscalls/__set_tid_address.S
	libc/arch-arm64/syscalls/__syslog.S
	libc/arch-arm64/syscalls/__timer_create.S
	libc/arch-arm64/syscalls/__timer_delete.S
	libc/arch-arm64/syscalls/__timer_getoverrun.S
	libc/arch-arm64/syscalls/__timer_gettime.S
	libc/arch-arm64/syscalls/__timer_settime.S
	libc/arch-arm64/syscalls/__waitid.S
	libc/arch-arm64/syscalls/_exit.S
	libc/arch-arm64/syscalls/accept.S
	libc/arch-arm64/syscalls/acct.S
	libc/arch-arm64/syscalls/bind.S
	libc/arch-arm64/syscalls/capget.S
	libc/arch-arm64/syscalls/capset.S
	libc/arch-arm64/syscalls/chdir.S
	libc/arch-arm64/syscalls/chroot.S
	libc/arch-arm64/syscalls/clock_getres.S
	libc/arch-arm64/syscalls/clock_gettime.S
	libc/arch-arm64/syscalls/clock_nanosleep.S
	libc/arch-arm64/syscalls/clock_settime.S
	libc/arch-arm64/syscalls/close.S
	libc/arch-arm64/syscalls/connect.S
	libc/arch-arm64/syscalls/delete_module.S
	libc/arch-arm64/syscalls/dup.S
	libc/arch-arm64/syscalls/dup3.S
	libc/arch-arm64/syscalls/epoll_create1.S
	libc/arch-arm64/syscalls/epoll_ctl.S
	libc/arch-arm64/syscalls/eventfd.S
	libc/arch-arm64/syscalls/execve.S
	libc/arch-arm64/syscalls/faccessat.S
	libc/arch-arm64/syscalls/fchdir.S
	libc/arch-arm64/syscalls/fchmod.S
	libc/arch-arm64/syscalls/fchmodat.S
	libc/arch-arm64/syscalls/fchown.S
	libc/arch-arm64/syscalls/fchownat.S
	libc/arch-arm64/syscalls/fcntl.S
	libc/arch-arm64/syscalls/fdatasync.S
	libc/arch-arm64/syscalls/fgetxattr.S
	libc/arch-arm64/syscalls/flistxattr.S
	libc/arch-arm64/syscalls/flock.S
	libc/arch-arm64/syscalls/fremovexattr.S
	libc/arch-arm64/syscalls/fsetxattr.S
	libc/arch-arm64/syscalls/fstat.S
	libc/arch-arm64/syscalls/fstatat.S
	libc/arch-arm64/syscalls/fstatfs.S
	libc/arch-arm64/syscalls/fsync.S
	libc/arch-arm64/syscalls/ftruncate.S
	libc/arch-arm64/syscalls/futex.S
	libc/arch-arm64/syscalls/getdents.S
	libc/arch-arm64/syscalls/getegid.S
	libc/arch-arm64/syscalls/geteuid.S
	libc/arch-arm64/syscalls/getgid.S
	libc/arch-arm64/syscalls/getgroups.S
	libc/arch-arm64/syscalls/getitimer.S
	libc/arch-arm64/syscalls/getpeername.S
	libc/arch-arm64/syscalls/getpgid.S
	libc/arch-arm64/syscalls/getpid.S
	libc/arch-arm64/syscalls/getppid.S
	libc/arch-arm64/syscalls/getresgid.S
	libc/arch-arm64/syscalls/getresuid.S
	libc/arch-arm64/syscalls/getrlimit.S
	libc/arch-arm64/syscalls/getrusage.S
	libc/arch-arm64/syscalls/getsid.S
	libc/arch-arm64/syscalls/getsockname.S
	libc/arch-arm64/syscalls/getsockopt.S
	libc/arch-arm64/syscalls/gettid.S
	libc/arch-arm64/syscalls/gettimeofday.S
	libc/arch-arm64/syscalls/getuid.S
	libc/arch-arm64/syscalls/getxattr.S
	libc/arch-arm64/syscalls/init_module.S
	libc/arch-arm64/syscalls/inotify_add_watch.S
	libc/arch-arm64/syscalls/inotify_init1.S
	libc/arch-arm64/syscalls/inotify_rm_watch.S
	libc/arch-arm64/syscalls/ioprio_get.S
	libc/arch-arm64/syscalls/ioprio_set.S
	libc/arch-arm64/syscalls/kill.S
	libc/arch-arm64/syscalls/klogctl.S
	libc/arch-arm64/syscalls/lgetxattr.S
	libc/arch-arm64/syscalls/linkat.S
	libc/arch-arm64/syscalls/listen.S
	libc/arch-arm64/syscalls/listxattr.S
	libc/arch-arm64/syscalls/llistxattr.S
	libc/arch-arm64/syscalls/lremovexattr.S
	libc/arch-arm64/syscalls/lseek.S
	libc/arch-arm64/syscalls/lsetxattr.S
	libc/arch-arm64/syscalls/madvise.S
	libc/arch-arm64/syscalls/mincore.S
	libc/arch-arm64/syscalls/mkdirat.S
	libc/arch-arm64/syscalls/mknodat.S
	libc/arch-arm64/syscalls/mlock.S
	libc/arch-arm64/syscalls/mlockall.S
	libc/arch-arm64/syscalls/mmap.S
	libc/arch-arm64/syscalls/mount.S
	libc/arch-arm64/syscalls/mprotect.S
	libc/arch-arm64/syscalls/mremap.S
	libc/arch-arm64/syscalls/msync.S
	libc/arch-arm64/syscalls/munlock.S
	libc/arch-arm64/syscalls/munlockall.S
	libc/arch-arm64/syscalls/munmap.S
	libc/arch-arm64/syscalls/nanosleep.S
	libc/arch-arm64/syscalls/perf_event_open.S
	libc/arch-arm64/syscalls/personality.S
	libc/arch-arm64/syscalls/pipe2.S
	libc/arch-arm64/syscalls/prctl.S
	libc/arch-arm64/syscalls/pread64.S
	libc/arch-arm64/syscalls/prlimit64.S
	libc/arch-arm64/syscalls/pwrite64.S
	libc/arch-arm64/syscalls/read.S
	libc/arch-arm64/syscalls/readahead.S
	libc/arch-arm64/syscalls/readlinkat.S
	libc/arch-arm64/syscalls/readv.S
	libc/arch-arm64/syscalls/recvfrom.S
	libc/arch-arm64/syscalls/recvmsg.S
	libc/arch-arm64/syscalls/removexattr.S
	libc/arch-arm64/syscalls/renameat.S
	libc/arch-arm64/syscalls/sched_get_priority_max.S
	libc/arch-arm64/syscalls/sched_get_priority_min.S
	libc/arch-arm64/syscalls/sched_getparam.S
	libc/arch-arm64/syscalls/sched_getscheduler.S
	libc/arch-arm64/syscalls/sched_rr_get_interval.S
	libc/arch-arm64/syscalls/sched_setaffinity.S
	libc/arch-arm64/syscalls/sched_setparam.S
	libc/arch-arm64/syscalls/sched_setscheduler.S
	libc/arch-arm64/syscalls/sched_yield.S
	libc/arch-arm64/syscalls/sendfile.S
	libc/arch-arm64/syscalls/sendmsg.S
	libc/arch-arm64/syscalls/sendto.S
	libc/arch-arm64/syscalls/setgid.S
	libc/arch-arm64/syscalls/setgroups.S
	libc/arch-arm64/syscalls/setitimer.S
	libc/arch-arm64/syscalls/setns.S
	libc/arch-arm64/syscalls/setpgid.S
	libc/arch-arm64/syscalls/setpriority.S
	libc/arch-arm64/syscalls/setregid.S
	libc/arch-arm64/syscalls/setresgid.S
	libc/arch-arm64/syscalls/setresuid.S
	libc/arch-arm64/syscalls/setreuid.S
	libc/arch-arm64/syscalls/setrlimit.S
	libc/arch-arm64/syscalls/setsid.S
	libc/arch-arm64/syscalls/setsockopt.S
	libc/arch-arm64/syscalls/settimeofday.S
	libc/arch-arm64/syscalls/setuid.S
	libc/arch-arm64/syscalls/setxattr.S
	libc/arch-arm64/syscalls/shutdown.S
	libc/arch-arm64/syscalls/sigaltstack.S
	libc/arch-arm64/syscalls/signalfd4.S
	libc/arch-arm64/syscalls/socket.S
	libc/arch-arm64/syscalls/socketpair.S
	libc/arch-arm64/syscalls/statfs.S
	libc/arch-arm64/syscalls/swapoff.S
	libc/arch-arm64/syscalls/swapon.S
	libc/arch-arm64/syscalls/symlinkat.S
	libc/arch-arm64/syscalls/sync.S
	libc/arch-arm64/syscalls/sysinfo.S
	libc/arch-arm64/syscalls/tgkill.S
	libc/arch-arm64/syscalls/timerfd_create.S
	libc/arch-arm64/syscalls/timerfd_gettime.S
	libc/arch-arm64/syscalls/timerfd_settime.S
	libc/arch-arm64/syscalls/times.S
	libc/arch-arm64/syscalls/tkill.S
	libc/arch-arm64/syscalls/truncate.S
	libc/arch-arm64/syscalls/umask.S
	libc/arch-arm64/syscalls/umount2.S
	libc/arch-arm64/syscalls/uname.S
	libc/arch-arm64/syscalls/unlinkat.S
	libc/arch-arm64/syscalls/unshare.S
	libc/arch-arm64/syscalls/utimensat.S
	libc/arch-arm64/syscalls/wait4.S
	libc/arch-arm64/syscalls/write.S
	libc/arch-arm64/syscalls/writev.S
	libc/kernel/tools/generate_uapi_headers.sh
	libc/kernel/uapi/asm-arm64/asm/auxvec.h
	libc/kernel/uapi/asm-arm64/asm/bitsperlong.h
	libc/kernel/uapi/asm-arm64/asm/byteorder.h
	libc/kernel/uapi/asm-arm64/asm/errno.h
	libc/kernel/uapi/asm-arm64/asm/fcntl.h
	libc/kernel/uapi/asm-arm64/asm/hwcap.h
	libc/kernel/uapi/asm-arm64/asm/ioctl.h
	libc/kernel/uapi/asm-arm64/asm/ioctls.h
	libc/kernel/uapi/asm-arm64/asm/ipcbuf.h
	libc/kernel/uapi/asm-arm64/asm/kvm_para.h
	libc/kernel/uapi/asm-arm64/asm/mman.h
	libc/kernel/uapi/asm-arm64/asm/msgbuf.h
	libc/kernel/uapi/asm-arm64/asm/param.h
	libc/kernel/uapi/asm-arm64/asm/poll.h
	libc/kernel/uapi/asm-arm64/asm/posix_types.h
	libc/kernel/uapi/asm-arm64/asm/ptrace.h
	libc/kernel/uapi/asm-arm64/asm/resource.h
	libc/kernel/uapi/asm-arm64/asm/sembuf.h
	libc/kernel/uapi/asm-arm64/asm/setup.h
	libc/kernel/uapi/asm-arm64/asm/shmbuf.h
	libc/kernel/uapi/asm-arm64/asm/sigcontext.h
	libc/kernel/uapi/asm-arm64/asm/siginfo.h
	libc/kernel/uapi/asm-arm64/asm/signal.h
	libc/kernel/uapi/asm-arm64/asm/socket.h
	libc/kernel/uapi/asm-arm64/asm/sockios.h
	libc/kernel/uapi/asm-arm64/asm/stat.h
	libc/kernel/uapi/asm-arm64/asm/statfs.h
	libc/kernel/uapi/asm-arm64/asm/swab.h
	libc/kernel/uapi/asm-arm64/asm/termbits.h
	libc/kernel/uapi/asm-arm64/asm/termios.h
	libc/kernel/uapi/asm-arm64/asm/types.h
	libc/kernel/uapi/asm-arm64/asm/unistd.h
	libc/private/bionic_atomic_arm64.h
	libm/arm64/_fpmath.h
	libm/arm64/fenv.c
	libm/include/arm64/fenv.h
	linker/arch/arm64/begin.S
Workaround the GCC "(long)fn -> lfn" optimization bug.

Pass "-fno-builtin-rint -fno-builtin-rintl -fno-builtin-rintf" to avoid
generating self recursions in lrint, lrintl, and lrintf.

BUG: 14225968
Change-Id: Iffc4d8f0692580d636a529f4c8aa9a7a10d7acd8