Add .cfi_startproc/.cfi_endproc to ENTRY/END.

Bug: 10414953
Change-Id: I711718098b9f3cc0ba8277778df64557e9c7b2a0

Conflicts:
	libc/arch-arm/krait/bionic/memcpy_base.S
	libc/arch-x86_64/bionic/clone.S
Merge branch 'android-4.4' of https://github.com/chadouming/android_bionic into android-4.4