Linaro 4.8 fixes

Signed-off-by: shivamk11 <shivamk11@gmail.com>
net/bluetooth/hci_conn.c: GCC 4.8.x fix up again

Signed-off-by: shivamk11 <shivamk11@gmail.com>
Add build scripts
Signed-off-by: shivamk11 <shivamk11@gmail.com>
defconfig: Squashed update
Signed-off-by: shivamk11 <shivamk11@gmail.com>
Enable pipe flag.

Signed-off-by: shivamk11 <shivamk11@gmail.com>
lib/memcopy: use glibc version

the kernel's memcpy and memmove is very inefficient. But the glibc version is
quite fast, in some cases it is 10 times faster than the kernel version. So I
introduce some memory copy macros and functions of the glibc to improve the
kernel version's performance.

The strategy of the memory functions is:
1. Copy bytes until the destination pointer is aligned.
2. Copy words in unrolled loops.  If the source and destination are not
   aligned in the same way, use word memory operations, but shift and merge
   two read words before writing.
3. Copy the few remaining bytes.

Signed-off-by: Miao Xie <miaox*******>
Signed-off-by: faux123 <reioux@gmail.com>
Add /dev/frandom
Fix build with sm-toolchain 4.8.x in the Makefile

-Use CC instead of REAL_CC
-Remove the wrapper, archheaders and archscripts
-Add missing-syscalls

Signed-off-by: Paul Beeler <sparksco@gmail.com>