Fix Coverity Scan CID 340290 (Variable msg_p going out of scope leaks the storage it points to.)

openair2/RRC/LTE/rrc_eNB_S1AP.c

@@ -2033,6 +2033,8 @@ int rrc_eNB_send_PATH_SWITCH_REQ(const protocol_ctxt_t *const ctxt_pP,
 			 S1AP_PATH_SWITCH_REQ (msg_p).eNB_ue_s1ap_id,
 			 e_rabs_done);
 	itti_send_msg_to_task (TASK_S1AP, ctxt_pP->instance, msg_p);
+     } else {
+        itti_free(ITTI_MSG_ORIGIN_ID(msg_p), msg_p);
      }
 
   return 0;