Currently host starts the start_rso_stop_timer when it sends roam
stop related commands to firmware. And tries to stop the timer when
it receives roam event with reason ROAM_REASON_RSO_STATUS or
ROAM_REASON_HO_FAILED. Since firmware also sends roam event with
above reasons when host configs other roam parameters. This causes
host confused about whether to stop the timer or not.
To resolve this issue, add one more condition
roam_event->notif_params == WMI_ROAM_SCAN_MODE_NONE
Change-Id: Ia24d5bba1e35bc4102951adcafc76edda7769d35
CRs-Fixed: 3267506
8aee5c59f0