add msm7x27a as MDSS_target

Change-Id: Id34147b5d080ce9bf264cc86b03ba105f34c2a31
Revert "add msm7x27a as MDSS_target"

This reverts commit 131854fdb0f98a54ebc01f9f8a59af4154a814f9.
Revert "msm7x27a: enable NO_IOMMU"

This reverts commit b21cfb62d7c5fa28b775bf4384c9cd2ae7d77a01.
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

Conflicts:
	libhwcomposer/hwc_utils.cpp
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