[automerger skipped] vpxdec: handle non-display frames
am: d19313d815 -s ours
am skip reason: change_id I4c581b229b83a555d6214075f0e5367d17461cc9 with SHA1 377eeab000 is in history

Change-Id: Ica1947dfb297a2d81649947cf280bdb69456c3fe