[libc] Add missing strcat.S to x86.mk Makefile

 arch-x86/string/strcat.S was not included in the x86.mk ;
 This was causing the build to fail when building for x86 Targets

Change-Id: I8001cdb25c2ff84c994603e648ef74c9c1daa5ea
Revert "Detect userspace memory leak for JB_MR2"

This reverts commit bba493121c8e135bd9cd145ab35e53cac1702a9e.
Merge remote-tracking branch 'cm/cm-10.2' into nuts

Conflicts:
	libc/arch-x86/x86.mk

Change-Id: I344a8d44959ac083113ac3676e7c81648b312658
Merge branch 'jb43' of https://github.com/VanirAOSP/platform_bionic into jb-mr2