hwc: Add support for bandwidth check

Add support for checking whether the current frame's required
bandwidth can be handled by MDP.

The max limit is configurable via a property and the value is
derived from simulation runs and profiling

Conflicts:
	libhwcomposer/hwc_mdpcomp.cpp

Change-Id: I46b46c346973fcb6487a8a656268171470ce69b9
3 files changed