HID: wacom: Force new name for Wacom Intuos4 WL PTK-540WL

The name reported by Inutos4 WL connected by bluetooth is "PTK-540WL" and
to make it consistent with other Wacom devices it has to be converted to
"Wacom Intuos4 WL". It also makes userland applications aware that it's
a Wacom device.

This aligns naming of device to same used when this device is plugged into USB
port and controlled by USB wacom driver; and thus helps align userland logic to
route to apps like xf86-input-wacom.

Signed-off-by: Przemo Firszt <przemo@firszt.eu>
Reviewed-by: Chris Bagwell <chris@cnpbagwell.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>

drivers/hid/hid-wacom.c

@@ -510,6 +510,7 @@ static int wacom_probe(struct hid_device *hdev,
 		wacom_poke(hdev, 1);
 		break;
 	case USB_DEVICE_ID_WACOM_INTUOS4_BLUETOOTH:
+		sprintf(hdev->name, "%s", "Wacom Intuos4 WL");
 		wdata->features = 0;
 		wacom_set_features(hdev);
 		break;