Add PNP id for Compex RL2000.

I'm not sure whether adding this logical id is correct or not
because Compex RL2000 is in the list of supported hardware list.
I guess the Compex RL2000 could be PCI variant while the controller
in question is ISA controller. It seems PNP compat id didn't match
or it had multiple compat ids so isa_pnp_probe() seemed to return
ENOENT.

PR:	kern/80853

sys/dev/ed/if_ed_isa.c

@@ -58,6 +58,7 @@ static struct isa_pnp_id ed_ids[] = {
 	{ 0x0131d805,	NULL },		/* ANX3101 */
 	{ 0x4cf48906,	NULL },		/* ATIf44c */
 	{ 0x01200507,	NULL },		/* AXE2001 */
+	{ 0x0115180e,	NULL },		/* CPX1501 */
 	{ 0x0090252a,	NULL },		/* JQE9000 */
 	{ 0x0020832e,	NULL },		/* KTC2000 */
 	{ 0xd680d041,	NULL },		/* PNP80d6 */