soc: swr-mstr: Use single pm runtime call during port enable

Add changes to call pm runtime calls only once for soundwire
master active, to be able to decrement and put to suspend
during SSR.

Change-Id: I068040e2a224d1ee97f472f69f25af77ae632be2
Signed-off-by: Ramprasad Katkam <katkam@codeaurora.org>