If master clock is provided through device tree, then update
the master clock frequency during set_sysclk.

Documentation has been updated to reflect the change.
Signed-off-by: NTushar Behera <tushar.behera@linaro.org>
Signed-off-by: NMark Brown <broonie@linaro.org>

Create an explicit of_match_table entry for MAX98095 codec. Also
add a binding Documentation for this compatible string.
Signed-off-by: NTushar Behera <tushar.behera@linaro.org>
Signed-off-by: NMark Brown <broonie@linaro.org>