Fix a bug with ext-intra when skip_recode is enabled
Fix a bug with ext-intra when skip_recode is enabled

Change-Id: I906945d61254149b315a6de81ac6373ed31791e6

luctrudeau/aom,GrokImageCompression/aom,mbebenita/aom,smarter/aom,mbebenita/aom,mbebenita/aom,mbebenita/aom,mbebenita/aom,GrokImageCompression/aom,mbebenita/aom,smarter/aom,smarter/aom,luctrudeau/aom,mbebenita/aom,GrokImageCompression/aom,GrokImageCompression/aom,GrokImageCompression/aom,smarter/aom,luctrudeau/aom,mbebenita/aom,luctrudeau/aom,luctrudeau/aom,luctrudeau/aom,smarter/aom,smarter/aom,mbebenita/aom,GrokImageCompression/aom