Prevent potential token buffer overflow in format 444
Prevent potential token buffer overflow in format 444

For a 16x16 pixel block, one needs to allocate 16x16 coefficient
tokens, plus up to 16 eob tokens, per plane. This commit increases
the token allocation size to cover the case where all the transform
blocks are of size 4x4 in format 444.

Change-Id: I5755e6a53771053d51163d01ec1d62e670c5009e

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