qcacmn: Add support for MLO stats

As part of MLO stats feature, add support to send ll_stats
and get_station stats request to firmware for all the MLO vdevs.

Change-Id: Ic50a6294f868f0604d4cfc0d4b657b6085da2fb4
CRs-Fixed: 3181020

umac/cmn_services/obj_mgr/inc/wlan_objmgr_vdev_obj.h

@@ -1599,7 +1599,7 @@ bool wlan_vdev_mlme_is_mlo_mcast_vdev(struct wlan_objmgr_vdev *vdev)
 #endif
 
 /**
- * wlan_vdev_mlme_is_mlo_vdev() - whether it is mlo sta link vdev or not
+ * wlan_vdev_mlme_is_mlo_link_vdev() - whether it is mlo sta link vdev or not
  * @vdev: VDEV object
  *
  * Return: True if it is mlo sta link, otherwise false.