wimax/i2400m: Add support for more i6x50 SKUs

The Intel WiMax Wireless Link 6050 can show under more than one USB
ID. Add support for all, introducing a generic flag (i2400mu->i6050)
that denotes a 6x50 based device.

Signed-off-by: Inaky Perez-Gonzalez <inaky@linux.intel.com>
diff --git a/drivers/net/wimax/i2400m/i2400m-usb.h b/drivers/net/wimax/i2400m/i2400m-usb.h
index 5cc0f27..2d7c96d 100644
--- a/drivers/net/wimax/i2400m/i2400m-usb.h
+++ b/drivers/net/wimax/i2400m/i2400m-usb.h
@@ -151,6 +151,7 @@
 
 	/* Device IDs */
 	USB_DEVICE_ID_I6050 = 0x0186,
+	USB_DEVICE_ID_I6050_2 = 0x0188,
 };
 
 
@@ -234,6 +235,7 @@
 	u8 rx_size_auto_shrink;
 
 	struct dentry *debugfs_dentry;
+	unsigned i6050:1;	/* 1 if this is a 6050 based SKU */
 };