The readable registers are in consecutive ranges:
0x01 ~ 0x03, 0x0D ~ 0xD1, 0xFF
So simplify the implementation by specifying a range of consecutive values
in a single case label.
Signed-off-by: Axel Lin <axel.lin@ingics.com> Reviewed-by: Jarkko Nikula <jarkko.nikula@linux.intel.com> Tested-by: Jarkko Nikula <jarkko.nikula@linux.intel.com> Signed-off-by: Mark Brown <broonie@kernel.org>