USB: New device PID for ftdi_sio driver

Hello,

I need to use MaxStream's PKG-U modules which includes a ftdi sio chipset for
usb2serial communication, here are the patches for handling Maxstream's modules.

The VID & PID to use with the open-source driver are provided on the CD-ROM
bundled with the modules.

From: Neil Superna ARMSTRONG <[e-mail]>
Signed-off-by: Greg Kroah-Hartman <[e-mail]>

drivers/usb/serial/ftdi_sio.c

···
 	{ USB_DEVICE(FTDI_VID, FTDI_TACTRIX_OPENPORT_13U_PID) },
 	{ USB_DEVICE(ELEKTOR_VID, ELEKTOR_FT323R_PID) },
 	{ USB_DEVICE(TELLDUS_VID, TELLDUS_TELLSTICK_PID) },
+	{ USB_DEVICE(FTDI_VID, FTDI_MAXSTREAM_PID) },
 	{ },					/* Optional parameter entry */
 	{ }					/* Terminating entry */
 };

drivers/usb/serial/ftdi_sio.h

···
 #define FTDI_IBS_PEDO_PID	0xff3e  /* IBS PEDO-Modem (RF modem 868.35 MHz) */
 #define FTDI_IBS_PROD_PID	0xff3f  /* future device */
 
+/*
+ *  MaxStream devices	www.maxstream.net
+ */
+#define FTDI_MAXSTREAM_PID	0xEE18	/* Xbee PKG-U Module */
+
 /* Commands */
 #define FTDI_SIO_RESET 		0 /* Reset the port */
 #define FTDI_SIO_MODEM_CTRL 	1 /* Set the modem control register */