soc: soundwire: Enable audio core voting

Audio core vote enables soundwire master and establishes
soundwire link without which soundwire master will not power up.
This change votes for audio core during soundwire runtime
resume and unvotes during soundwire runtime suspend.

Change-Id: I3ca283be42670a56102c4f08c0f207ae9dc4e5c3
Signed-off-by: Sudheer Papothi <spapothi@codeaurora.org>