With the new serialization code, the older instances of code,
where the queue traversal to find matching cmd was done
from the public API was replaced with wlan_serialization_find_cmd API.
However, there was an instance where the list traversal was done from
the public API and is now replaced with wlan_serialization_find_cmd API.
Change-Id: Idc37f2bdd52cedc578b30a71517c9e57453f25d0
CRs-Fixed: 2312992