hwc: support drm video play back.

In case of drm video play back, GSC's destination buffer
should be allocateed from reserved memory using protected flag
in gralloc.
If src buffer is protected buffer, dst buffer should be same.

Change-Id: I5eb2a698f2ca404a585c436d6536462580ca4ba6
Signed-off-by: Sanghee Kim <haya93@samsung.com>
1 file changed