Simplify Frame Context for cfl_read_intra
Simplify Frame Context for cfl_read_intra

Change-Id: I9e0967662f2ed855813b968d5afd09f6d9fc1b62

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