usb: pch_udc: usb gadget device support for Intel Quark X1000

This patch is to enable the USB gadget device for Intel Quark X1000
Signed-off-by: Bryan O'Donoghue <bryan.odonoghue@intel.com>
Signed-off-by: Bing Niu <bing.niu@intel.com>
Signed-off-by: Alvin (Weike) Chen <alvin.chen@intel.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>

(cherry picked from commit a68df706)
Signed-off-by: Sasha Levin <sasha.levin@oracle.com>

drivers/usb/gadget/pch_udc.c

@@ -3270,6 +3270,12 @@ static int pch_udc_probe(struct pci_dev *pdev,
 }
 
 static DEFINE_PCI_DEVICE_TABLE(pch_udc_pcidev_id) = {
+	{
+		PCI_DEVICE(PCI_VENDOR_ID_INTEL,
+			   PCI_DEVICE_ID_INTEL_QUARK_X1000_UDC),
+		.class = (PCI_CLASS_SERIAL_USB << 8) | 0xfe,
+		.class_mask = 0xffffffff,
+	},
 	{
 		PCI_DEVICE(PCI_VENDOR_ID_INTEL,
 			   PCI_DEVICE_ID_INTEL_QUARK_X1000_UDC),