[PATCH] Fix expand_single_bit_test for big-endian

I had thought extract_bit_field bitpos argument was the shifted position and not the bitposition like BIT_FIELD_REF so I had removed the code which would use the correct bitposition for BYTES_BIG_ENDIAN. Committed as obvious; I checked big-endian MIPS to make sure we are now producing the correct

[PATCH] Fix expand_single_bit_test for big-endian

I had thought extract_bit_field bitpos argument was the shifted position and not the bitposition like BIT_FIELD_REF so I had removed the code which would use the correct bitposition for BYTES_BIG_ENDIAN. Committed as obvious; I checked big-endian MIPS to make sure we are now producing the correct