drm_hwcomposer: Use linear scaling instead of nearest neighbor

So scaled layer transitions between hw plane and gl plane look better.

BUG=b/28431632
TEST=Tested on low resolution paused YouTube video

Change-Id: I507722c28c5b8ec4e8d16ae436a04afc8cffaa0f
Signed-off-by: Sean Paul <seanpaul@chromium.org>
1 file changed