Rome supports mgmt Tx via HTT interface, not via WMI.
When mgmt frame is sent, 2 tx desc is allocated:
mgmt_txrx_desc is allocated in wlan_mgmt_txrx_mgmt_frame_tx,
ol_tx_desc is allocated in ol_txrx_mgmt_send_ext.
They point to same net buffer.
net buffer is mapped in htt_tx_desc_init.
When SSR during Rome STA connected, deauth frame is sent,
but no tx complete since firmware hung already.
Pending mgmt frames are unmapped and freed when destroy vdev.
hdd_reset_all_adapters->hdd_stop_adapter->hdd_vdev_destroy
->wma_handle_vdev_detach->wlan_mgmt_txrx_vdev_drain
->wma_mgmt_frame_fill_peer_cb
->mgmt_txrx_tx_completion_handler.
Don't need unmap and free net buffer of mgmt frames again during
data path clean up, just free ol_tx_desc.
hdd_wlan_stop_modules->cds_post_disable->cdp_pdev_pre_detach
->ol_txrx_pdev_pre_detach->ol_tx_free_descs_inuse.
Change-Id: I2fc658e833cf013bf7048c6bec90d9b247566444
CRs-Fixed: 2694854
61409803d7