AVRCP: FF/Rewind PlayState fix during device switch

FF/Rewind long press from active device and at the
same time PT Play from inactive device resulting 
ignoring FF Release update from first device which
now become inactive. Hence reset the FF/Rewind flag
at the time of active device switch so that proper
playstatus would be updated to active and inactive
devices after device switch. 

CRs-Fixed: 2548597
Change-Id: Ia8b1b76b66e9de42ff7db165dfd98d0510f63158
1 file changed