build: fix target header overlay

LOCAL_C_INCLUDES as defined by the makefile should be put AFTER
the overlay includes so the overlay always takes precedence.

Change-Id: I489b2aab6dbacd9122d834f85e07b63ed1271f07
Merge tag 'android-4.3_r2.2' of https://android.googlesource.com/platform/build into cm-10.2

Android 4.3 release 2.2
fixes for GCC 4.8 and 4.9

Conflicts:
	core/combo/TARGET_linux-arm.mk
Merge remote-tracking branch 'upstream/jb43-legacy' into jb43-legacy