efikasb/mx: fix usbh1 initialisation

mx51_initialize_usb_hw() support introduced a small error. The usbh1 has
pdev->id equal to 1 not 0, so use pdev->id to make things less error-prone and
to fix that.
Signed-off-by: Arnaud Patard <arnaud.patard@rtp-net.org>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

arch/arm/mach-mx5/mx51_efika.c

@@ -186,7 +186,7 @@ static int initialize_usbh1_port(struct platform_device *pdev)
 
 	mdelay(10);
 
-	return mx51_initialize_usb_hw(0, MXC_EHCI_ITC_NO_THRESHOLD);
+	return mx51_initialize_usb_hw(pdev->id, MXC_EHCI_ITC_NO_THRESHOLD);
 }
 
 static struct mxc_usbh_platform_data usbh1_config = {