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/devs.c b/arch/arm/plat-samsung/devs.c
index 1d1fa06..1602f6d 100644
--- a/arch/arm/plat-samsung/devs.c
+++ b/arch/arm/plat-samsung/devs.c
@@ -1010,9 +1010,9 @@ void __init dwc2_hsotg_set_platdata(struct dwc2_hsotg_plat *pd)
 	npd = s3c_set_platdata(pd, sizeof(*npd), &s3c_device_usb_hsotg);
 
 	if (!npd->phy_init)
-		npd->phy_init = s5p_usb_phy_init;
+		npd->phy_init = s3c_usb_phy_init;
 	if (!npd->phy_exit)
-		npd->phy_exit = s5p_usb_phy_exit;
+		npd->phy_exit = s3c_usb_phy_exit;
 }
 #endif /* CONFIG_S3C_DEV_USB_HSOTG */