qcacmn: Do not assert for ref leak if SSR/PDR is ongoing

The driver uses a timer to check if there is a potential ref leak by
inducing assert if a given module does not release ref even when the
object is in L-state. But in case there is SSR/PDR, it might take more
time to clean up/release the refs. In this case, no assert should be
triggered.

Add a check in wlan_objmgr_iterate_log_del_obj_handler before calling
the assert API.

Change-Id: Ifb7568e11bff2b9fc610633af730461e33dc5539
CRs-Fixed: 2468301