usb: xhci-pci: Fix compiler warning

This fixes the following compiler warning:

  "warning: cast from pointer to integer of different size
  [-Wpointer-to-int-cast]"

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
diff --git a/drivers/usb/host/xhci-pci.c b/drivers/usb/host/xhci-pci.c
index e8fd6bf..b995aef 100644
--- a/drivers/usb/host/xhci-pci.c
+++ b/drivers/usb/host/xhci-pci.c
@@ -23,9 +23,8 @@
 	hcor = (struct xhci_hcor *)((uintptr_t) hccr +
 			HC_LENGTH(xhci_readl(&hccr->cr_capbase)));
 
-	debug("XHCI-PCI init hccr 0x%x and hcor 0x%x hc_length %d\n",
-	      (u32)hccr, (u32)hcor,
-	      (u32)HC_LENGTH(xhci_readl(&hccr->cr_capbase)));
+	debug("XHCI-PCI init hccr %p and hcor %p hc_length %d\n",
+	      hccr, hcor, (u32)HC_LENGTH(xhci_readl(&hccr->cr_capbase)));
 
 	*ret_hccr = hccr;
 	*ret_hcor = hcor;