use frame_type for key frame check
use frame_type for key frame check

Change-Id: I416a7f99e292a6304bc24d93ab580650768d5e21

GrokImageCompression/aom,GrokImageCompression/aom,GrokImageCompression/aom,GrokImageCompression/aom,GrokImageCompression/aom,GrokImageCompression/aom