Do not store volume if HAP device is active.

To avoid store wrong steam volume for A2DP device
when switch active devices from A2DP to Hearing Aid.
Only store volume for A2DP device when Hearing Aid
device are not active.

CRs-Fixed: 2544789
Change-Id: I19b71c59bd7c4445424a2f910f30f9642eaf6155
1 file changed