qcacld-3.0: Stop bus_bw timer as part of stop_adapter for NDI

bus_bw timer start happens when first NDP is connected and
stop happens when last peer is departed indication is received
from firmware. But as part of driver unload, driver issues
stop_bss and firmware doesn't send any NDP END indication after
receiving this. So the timer started as part of first NDP
confirm is not stopped.
Try to stop the timer after processing the sme_disconnect which
is issued as part of stop_adapter for NDI mode.

Also, in STA+NDI concurrency scenario, bus bandwidth timer is
stopped on STA disconnection since hdd_any_adapter_is_assoc
checks only for other active STA or SAP. Add an NDI active
check so that timer is not stopped when NDPs are present on
an NDI.

Change-Id: Ibec447846fefad153261830c34bf2fa914636c7a
CRs-Fixed: 2625586
3 files changed