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>
diff --git a/board/samsung/trats/trats.c b/board/samsung/trats/trats.c
index 3a553c1..6f711a8 100644
--- a/board/samsung/trats/trats.c
+++ b/board/samsung/trats/trats.c
@@ -430,7 +430,7 @@
 int board_usb_init(int index, enum usb_init_type init)
 {
 	debug("USB_udc_probe\n");
-	return s3c_udc_probe(&s5pc210_otg_data);
+	return dwc2_udc_probe(&s5pc210_otg_data);
 }
 
 int g_dnl_board_usb_cable_connected(void)