In the case of concurrency, when the session decrements, the
opportunistic timer is started. After a while, when the
opportunistic time is expired, and the hw mode change for SMM
is issued, and the same time new interface comes up, then the
new forms MCC with the existing connection instead of forming
DBS.
The change is to avoid the race condition to form MCC instead of
DBS.
Change-Id: I977039138509676b964ba089e3cb479cd16968bb
CRs-Fixed: 2006350