bnx2x: fix vlan-mac memory leak

Release (previously leaking) memory when elements are removed from pending
execution lists in the bnx2x driver.
Signed-off-by: NYuval Mintz <yuvalmin@broadcom.com>
Signed-off-by: NAriel Elior <ariele@broadcom.com>
Signed-off-by: NEilon Greenstein <eilong@broadcom.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

drivers/net/ethernet/broadcom/bnx2x/bnx2x_sp.c

@@ -1854,6 +1854,7 @@ static int bnx2x_vlan_mac_del_all(struct bnx2x *bp,
 				return rc;
 			}
 			list_del(&exeq_pos->link);
+			bnx2x_exe_queue_free_elem(bp, exeq_pos);
 		}
 	}