Restore the best_eob in av1_search_txk_type
Restore the best_eob in av1_search_txk_type

Change-Id: I679eea672e183a34cdbfeef6eb4f3bd5b549b85d

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