Simply adding an entry for the OpenRD Ultimate (which is slightly different than the other sheevas.

Reference: /n/sources/patch/applied/usb-serial.openrd-ult
Date: Thu Aug 19 01:35:46 CES 2010
Signed-off-by: 9@trstn.net

--- /sys/src/cmd/usb/serial/ftdi.c	Thu Aug 19 01:34:32 2010
+++ /sys/src/cmd/usb/serial/ftdi.c	Thu Aug 19 01:34:31 2010
@@ -15,6 +15,7 @@
 Cinfo ftinfo[] = {
 	{ FTVid, FTACTZWAVEDid },
 	{ FTSheevaVid, FTSheevaDid },
+	{ FTVid, FTOpenRDUltDid},
 	{ FTVid, FTIRTRANSDid },
 	{ FTVid, FTIPLUSDid },
 	{ FTVid, FTSIODid },
--- /sys/src/cmd/usb/serial/ftdi.h	Thu Aug 19 01:34:33 2010
+++ /sys/src/cmd/usb/serial/ftdi.h	Thu Aug 19 01:34:32 2010
@@ -4,6 +4,7 @@
 
 	FTSheevaVid	= 0x9E88,
 	FTSheevaDid	= 0x9E8F,
+	FTOpenRDUltDid	= 0x9E90,
 
 	FTSIODid	= 0x8372,	/* Product Id SIO appl'n of 8U100AX */
 	FT8U232AMDid	= 0x6001, 	/* Similar device to SIO above */