usb: gadget: at91_udc: Fix clock names

The driver is requesting clock by their global name (those declared in the
clk_lookup list), but this only works with !CCF kernels.

Now that all SoCs have moved to CCF, fix the driver to use local names
(hclk and pclk).

Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Acked-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Acked-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>

drivers/usb/gadget/udc/at91_udc.c

@@ -1779,8 +1779,8 @@ static int at91udc_probe(struct platform_device *pdev)
 	udc_reinit(udc);
 
 	/* get interface and function clocks */
-	udc->iclk = clk_get(dev, "udc_clk");
-	udc->fclk = clk_get(dev, "udpck");
+	udc->iclk = clk_get(dev, "pclk");
+	udc->fclk = clk_get(dev, "hclk");
 	if (IS_ENABLED(CONFIG_COMMON_CLK))
 		udc->uclk = clk_get(dev, "usb_clk");
 	if (IS_ERR(udc->iclk) || IS_ERR(udc->fclk) ||