HID: add support for Pixart Imaging Optical Touch Screen

Added support for the Pixart Imaging Inc. Optical Touch Screen found in the MSI
AE2220 and other new all in one computers to the Quanta Optical Touch
dual-touch panel driver found in the latest git clone
git://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git.

Signed-off-by: Alex Neblett <alexneblett01@yahoo.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
diff --git a/drivers/hid/hid-quanta.c b/drivers/hid/hid-quanta.c
index 244d61c..9ac4928 100644
--- a/drivers/hid/hid-quanta.c
+++ b/drivers/hid/hid-quanta.c
@@ -224,6 +224,8 @@
 static const struct hid_device_id quanta_devices[] = {
 	{ HID_USB_DEVICE(USB_VENDOR_ID_QUANTA,
 			USB_DEVICE_ID_QUANTA_OPTICAL_TOUCH) },
+	{ HID_USB_DEVICE(USB_VENDOR_ID_QUANTA,
+			USB_DEVICE_ID_PIXART_IMAGING_INC_OPTICAL_TOUCH_SCREEN) },
 	{ }
 };
 MODULE_DEVICE_TABLE(hid, quanta_devices);