Fix enc/dec mismatch when sub8x8_comp_ref is forced off
Fix enc/dec mismatch when sub8x8_comp_ref is forced off

BUG=aomedia:480

Change-Id: Ica26275274614d283db0cefcffac1f86993c4d6b

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