qcacld-3.0: Fix e_sme_command_nss_update stuck issue

Update NSS command is remove once driver receive the tx completion
event for the beacon. If SAP is in CAC wait state driver will not
get the tx completion for the beacon and the update NSS will timeout
after 30 sec and the serialization cmds queues will get stuck.

To avoid this remove the update NSS command from active queue as
soon as beacon is sent to firmware

Change-Id: I6f5b6bce91bdfacd4621020f313be25f74696b9d
CRs-Fixed: 2332302
18 files changed