qcacmn: Pause Tx HW enqueue when bus suspend in progress

In SAP due to intrabss forwarding, Tx ring update is going through
when WOW enable command has been sent to FW. This results in crash.
To fix this, do not update HP when apps suspend is in progress.

Change-Id: Id4176224563bdd759828397fa1cd23de1598192e
CRs-Fixed: 3294407