Reset slimbus port on AUDIOFOCUS LOSS

On Audio focus loss, slave device, FM, keeps on sending packets to
master device, audio manager, even master is disconnected to slave
and slave's buffer overflowed after some time. Due to this, on Audio
focus gain, slave don't send packets to master. Hence no audio for
FM. Reset slimbus data port to overcome this situation.

CRs-Fixed: 1082673
Change-Id: I8317c6e82fe4844970e84e929e2c6328284c6ca9