qede: qede_fp: Mark expected switch fall-through

In preparation to enabling -Wimplicit-fallthrough, mark switch cases
where we are expecting to fall through.

Addresses-Coverity-ID: 1384501 ("Missing break in switch")
Addresses-Coverity-ID: 1398869 ("Missing break in switch")
Signed-off-by: NGustavo A. R. Silva <gustavo@embeddedor.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

drivers/net/ethernet/qlogic/qede/qede_fp.c

@@ -1119,8 +1119,10 @@ static bool qede_rx_xdp(struct qede_dev *edev,
 
 	default:
 		bpf_warn_invalid_xdp_action(act);
+		/* Fall through */
 	case XDP_ABORTED:
 		trace_xdp_exception(edev->ndev, prog, act);
+		/* Fall through */
 	case XDP_DROP:
 		qede_recycle_rx_bd_ring(rxq, cqe->bd_num);
 	}