qcacld-3.0: Fix misspelling "registerd"

Fix misspelling: registerd ==> registered

Change-Id: I30b77d9d32b06180d4ba8c42a28ddc2553977e63
CRs-Fixed: 3275694

core/hdd/inc/wlan_hdd_main.h

@@ -2828,7 +2828,7 @@ int wlan_hdd_scan_abort(struct hdd_adapter *adapter);
  * @vdev_id: vdev id
  * @cnt: number of active ndp sessions
  *
- * This HDD callback registerd with policy manager to indicates number of active
+ * This HDD callback registered with policy manager to indicates number of active
  * ndp sessions to hdd.
  *
  * Return:  none