ARM: s3c: Rename s5p_usb_phy functions

The name s5p_usb_phy_init() suggests it is shared with S5Pv210 platform,
but it is not.  It is specific to S3C64xx, so make it clear in the
name.

Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
diff --git a/arch/arm/plat-samsung/include/plat/usb-phy.h b/arch/arm/plat-samsung/include/plat/usb-phy.h
index 94da89e..759d66a 100644
--- a/arch/arm/plat-samsung/include/plat/usb-phy.h
+++ b/arch/arm/plat-samsung/include/plat/usb-phy.h
@@ -7,7 +7,7 @@
 #ifndef __PLAT_SAMSUNG_USB_PHY_H
 #define __PLAT_SAMSUNG_USB_PHY_H __FILE__
 
-extern int s5p_usb_phy_init(struct platform_device *pdev, int type);
-extern int s5p_usb_phy_exit(struct platform_device *pdev, int type);
+extern int s3c_usb_phy_init(struct platform_device *pdev, int type);
+extern int s3c_usb_phy_exit(struct platform_device *pdev, int type);
 
 #endif /* __PLAT_SAMSUNG_USB_PHY_H */