Track graphic buffer mode in OMXNodeInstance

FPIIM-1948

Test: cts-tradefed run cts -p android.media & YT & Play Movies & Cast
Bug: 62948670
Merged-In: Icbd9b767f1aef005819e680f77f4a05041988f34
Change-Id: Icbd9b767f1aef005819e680f77f4a05041988f34
(cherry picked from commit 0caad5360c797344c074b36754d9036b6ddd269a)
2 files changed