asoc: msm-cdc-pinctrl: Add alternate pinctrl state for DSD input

Add additional pinctrl states to support alternative function.
This change enables support of alternative pins through pinctrl
framework.

Change-Id: I1f3f9a13345846f1714b4ecaeecde975b5cf6813
Signed-off-by: Sanjana B <sanjb@codeaurora.org>