separate mHeap-based screenshot from BOARD_EGL_NEEDS_LEGACY_FB

No need for the Exynos/Tegra legacy fb implementation on legacy
qcom. Add a separate flag for mHeap-based screenshot in case of
future extensions. Enable mHeap-based screenshot for legacy qcom
dislay.

Change-Id: I92a6e3c333ff8712ef4d77f937d0380948d0b052
Revert "Simplify OpenGL TLS access on ARM."

This reverts commit 288870ebc3da8121b7a237a53280bd8b931b7a2f.

Conflicts:

	opengl/libagl/Android.mk
	opengl/libs/EGL/getProcAddress.cpp
	opengl/libs/GLES2/gl2.cpp
	opengl/libs/GLES_CM/gl.cpp

Change-Id: I1401ab19e3035c1ed132781f126aafc5149d66ae
Add overlay support for camera

Change-Id: I4089f2ba9d4a23af6ce53e9d1ece08260511502d
Merge branch 'android-4.3' of https://github.com/omnirom/android_frameworks_native into HEAD