VendorGraphicBuffer: Add import buffer and free buffer functions

Bug: b/187279591
Test: video playback(YouTube, Exoplayer), video recording \
      3P Apps recording
Change-Id: I72f422f7500cf3a0896f4d491719f2f24da91949
Signed-off-by: Charlie Chen <yuchungchen@google.com>
3 files changed