libcopybit: Add missing return statement

Change-Id: I662699b7418eba2c4792ed6c7c7b628762ebe03b
(cherry picked from commit f2e940109252c63b6e21f929e45ba794dfe12b95)
copybit: Fix type conversion error for GCC 4.7

    GCC 4.7 has stricter type conversion rules in copybit.cpp

Change-Id: I7f8572e2d9416ccb2ba17e707c7f75a2e69d69cf
hwc: mdp3 don't support rotator

Change-Id: I26fe237831eb6fa41968d5eb6a75938e6dc53183
hwc: only setHPD when external display connected

Change-Id: I8b6e6e6d9264111bf9bab098e3634ad0d2bab900
display: Cover NO_IOMMU for msm7x30 too

Change-Id: Ic68672f386a06fd0ac9fd1f18eec3188415a8642
display: no IOMMU for msm7x27a as well

Change-Id: I4dd331dd9dddf4b767dcb455796b8435ddfa9f46
TEMP change

Change-Id: I3fe9a49bc8c68910842f8645d666ee45651bbf22
gralloc: Allow legacy devices to use PMEM for ADSP (camera).

Partially bring back PMEM support for legacy devices having proprietary camera
libraries stuck in PMEM. This change allows these devices to continue using
PMEM for the camera, and ION for everything else.

Change-Id: I1afbc7d137b3d49b2ab3e53917b16fd920ea140b
gralloc: our prebuilt camera lib needs the ADSP heap to be first