[SERIAL] EISA ID for PnP modem

Patch from: Amit Gurdasani

I have a PROLiNK 1456VH internal Rockwell-based ISA PnP K56flex fax modem
whose EISA ID seems not to be known to 8250_pnp.c. The ID is AEI0250 as
reported in /sys/devices/pnp1/01:01/01:01.00/id and adding this into the
pnp_dev_table[] allows the device to be found and enabled properly by the
8250 serial driver.

drivers/serial/8250_pnp.c

@@ -42,6 +42,8 @@ static const struct pnp_device_id pnp_dev_table[] = {
 	{	"ADC0001",		0	},
 	/* SXPro 288 External Data Fax Modem Plug & Play */
 	{	"ADC0002",		0	},
+	/* PROLiNK 1456VH ISA PnP K56flex Fax Modem */
+	{	"AEI0250",		0	},
 	/* Actiontec ISA PNP 56K X2 Fax Modem */
 	{	"AEI1240",		0	},
 	/* Rockwell 56K ACF II Fax+Data+Voice Modem */