Use the correct macro for the context number
Use the correct macro for the context number

Change-Id: I94f739840b90688506ebf5a4e7cf355cd6fb75ed

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