Another one ISA PnP modem (USR0009)

Below is a patch from Denis Zaitsev <[email protected]> with the following two adjustments:
- applies with -p1 (not -p0)
- USRobotics -> U.S. Robotics (consistent with the rest of the entries)

Original comment of Denis Zaitsev:

<-- snip -->

This patch adds the USR Courier INT (one of them?) into the list of the PnP devices IDs in 8250_pnp. Before the patch this modem hasn't been activated by 8250_pnp.

<-- snip -->

@@ -293,6 +293,8 @@ static const struct pnp_device_id pnp_de
 	{	"USR0006",		0	},
 	/* U.S. Robotics 33.6K Voice EXT PnP */
 	{	"USR0007",		0	},
+	/* U.S. Robotics Courier V.Everything INT PnP */
+	{	"USR0009",		0	},
 	/* U.S. Robotics 33.6K Voice INT PnP */
 	{	"USR2002",		0	},
 	/* U.S. Robotics 56K Voice INT PnP */