PAN: Fix service restart during force kill.

Use case:
During sns test.

Root cause:
During force kill adapter service not sending
clean up request so same service restarting by framework
because of active service instance.

Fix:
stop pan service when we receive stop request
from adapter service so that we can avoid
restart of service during force kill.

CRs-Fixed: 2517852
Change-Id: I9fa08352b9403b345e40059b4318634ba53120e5
1 file changed