soundwire: Disable ports in both banks after playback usecase

Soundwire hardware has two banks for configuring soundwire
slave ports. After playback is stopped, disable soundwire slave
ports in both banks to avoid any port collisions during the start
of next playback on other slave device.

Change-Id: I5cfd1d985a1ca5fd7b4020d7e14697642f207501
Signed-off-by: Sudheer Papothi <spapothi@codeaurora.org>