Allow to setup fps manually

Change-Id: Ida4b2b5006906070822e52ef98236407615da70e

Conflicts:

	Android.mk
	common.mk
	libgralloc/framebuffer.cpp

Conflicts:

	libgralloc/framebuffer.cpp

Conflicts:

	libgralloc/framebuffer.cpp
Build with MDP4.1 (partial bugfix for video blending)

Change-Id: Id38be90043224c3f18aa9bd569ce4c5bc8a27e82

Conflicts:

	liboverlay/overlayMem.h
hwc: dont mistake COPYBIT for FRAMEBUFFER_TARGET

Change-Id: Ic70ea63b51066d3179d5185194cf8a1085eadbe4
display-legacy: clarify COPYBIT == HWC_BLIT

Change-Id: I4e531764a782a583312d3734f4fa0d3a4604b667