fix build

Change-Id: I5151ff6270483da9bb0767306c2aaa6fbc5b2e91
Clean up trailing whitespace in the kernel headers.

And fix the scripts so they stop letting trailing whitespace through.

Change-Id: Ie109fbe1f63321e565ba0fa60fee8e9cf3a61cfc

Conflicts:
	libc/kernel/arch-arm/asm/arch/mux.h
	libc/kernel/arch-mips/asm/siginfo.h
	libc/kernel/arch-mips/asm/sn/ioc3.h
	libc/kernel/arch-mips/asm/sn/sn0/hubio.h
	libc/kernel/arch-mips/asm/sn/sn0/hubmd.h
	libc/kernel/arch-mips/asm/sn/sn0/hubni.h
	libc/kernel/arch-mips/asm/sockios.h
	libc/kernel/arch-x86/asm/elf.h
	libc/kernel/common/linux/audit.h
	libc/kernel/common/linux/auxvec.h
update kernel headers:

To edit the content of this header, modify the corresponding
 ***   source file (e.g. under external/kernel-headers/original/) then
 ***   run bionic/libc/kernel/tools/update_all.py

Change-Id: I921da0fdfec3dc7de96706873175c462a3179f5e