ASoC: wcd9xxx: Add codec specific settings to switch micbias to vddio

Micbias to the codec is sourced from LDO (either internal or external to
the codec). Micbias can also be enabled by switching the micbias to
vddio rail in the codec. The register settings changes between codecs.
Add capability to perform this setting specific to codec.

CRs-fixed: 539445
Change-Id: Ie55784ea990df5eba6ca35a97b431bbf93f0c945
Signed-off-by: Bhalchandra Gajare <gajare@codeaurora.org>