Check for early end of data when reading tiles
Check for early end of data when reading tiles

BUG=aomedia:709

Change-Id: I26f8938a744f7ebfd9734929502730b17de348f9

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