qcacmn: Handle start event failure

When the start continue callback fails due to any of the error
scenarios such as unable to find the channel, then the vdev SM
is stuck in the connection progress state leading to timeout
at the OSIF.

Graciously handle the start event failure by posting a connection
fail event back to vdev SM.

Change-Id: I0e4a3cf95529a09c88bc7fd4069aec99d4b9d78d
CRs-Fixed: 2552168

umac/mlme/vdev_mgr/core/src/vdev_mlme_sm.c

@@ -920,7 +920,12 @@ static bool mlme_vdev_subst_start_conn_progress_event(void *ctx,
 	case WLAN_VDEV_SM_EV_CONN_PROGRESS:
 		/* This API decides to move to DFS CAC WAIT or UP state,
 		 * for station notify connection state machine */
-		mlme_vdev_start_continue(vdev_mlme, event_data_len, event_data);
+		if (mlme_vdev_start_continue(vdev_mlme, event_data_len,
+					     event_data) != QDF_STATUS_SUCCESS)
+			mlme_vdev_sm_deliver_event(
+					vdev_mlme,
+					WLAN_VDEV_SM_EV_CONNECTION_FAIL,
+					event_data_len, event_data);
 		status = true;
 		break;