usb: s3c-otg: Rename s3c_udc_probe() function

The driver is actually for the Designware DWC2 controller.
This patch is the second and final to rename global symbol,
the s3c_udc_probe() function.

The rename is done automatically:
	$ sed -i "s/s3c_udc_probe/dwc2_udc_probe/g" \
		`git grep s3c_udc_probe | cut -d : -f 1`

Signed-off-by: Marek Vasut <marex@denx.de>

include/usb/s3c_udc.h

@@ -20,6 +20,6 @@ struct dwc2_plat_otg_data {
 	unsigned int	usb_gusbcfg;
 };
 
-int s3c_udc_probe(struct dwc2_plat_otg_data *pdata);
+int dwc2_udc_probe(struct dwc2_plat_otg_data *pdata);
 
 #endif