apply: Author: Ramakant Singh <ramaka@codeaurora.org> Display/libhwcomposer:Add intermediate stretch for low resolution clips Copybit module has a limited stretch to scale a clip. Hence we need to do a intermediate stretch before going to final stretch. and cleanup loops in hwc_prepare/set Change-Id: Ice32e12051c5c4367d1fafe17e804679e6e727c9