libc2dcolorconvert: Add flag for RGBA8888 endianness correctness

- C2D API by default expects the alpha byte in RGBA8888 at the LSB
- We add a flag requesting it to look for alpha at the MSB instead.

Change-Id: I9761564bc5e1381624becd56ee06fd5822c47597
merge in jb-mr1-release history after reset to jb-mr1-dev
merge in jb-mr1-release history after reset to jb-mr1-dev
merge in jb-mr1-release history after reset to jb-mr1-dev
merge in jb-mr1-release history after reset to jb-mr1-dev
merge in jb-mr1-release history after reset to jb-mr1-dev
merge in jb-mr1-release history after reset to jb-mr1-dev
Merge branch 'jb-mr1-release' of https://android.googlesource.com/platform/hardware/qcom/media into aosp
Merge branch 'cm-10.1' of git://github.com/CyanogenMod/android_hardware_qcom_media into cm-10.1