usb: s3c-otg: Rename struct s3c_usbotg_phy to dwc2_usbotg_phy

The driver is actually for the Designware DWC2 controller.
This patch renames struct s3c_usbotg_phy to struct dwc2_usbotg_phy
to make things more obvious and clear.

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

drivers/usb/gadget/s3c_udc_otg_phy.c

@@ -41,8 +41,8 @@
 void otg_phy_init(struct dwc2_udc *dev)
 {
 	unsigned int usb_phy_ctrl = dev->pdata->usb_phy_ctrl;
-	struct s3c_usbotg_phy *phy =
-		(struct s3c_usbotg_phy *)dev->pdata->regs_phy;
+	struct dwc2_usbotg_phy *phy =
+		(struct dwc2_usbotg_phy *)dev->pdata->regs_phy;
 
 	dev->pdata->phy_control(1);
 
@@ -79,8 +79,8 @@ void otg_phy_init(struct dwc2_udc *dev)
 void otg_phy_off(struct dwc2_udc *dev)
 {
 	unsigned int usb_phy_ctrl = dev->pdata->usb_phy_ctrl;
-	struct s3c_usbotg_phy *phy =
-		(struct s3c_usbotg_phy *)dev->pdata->regs_phy;
+	struct dwc2_usbotg_phy *phy =
+		(struct dwc2_usbotg_phy *)dev->pdata->regs_phy;
 
 	/* reset controller just in case */
 	writel(PHY_SW_RST0, &phy->rstcon);

drivers/usb/gadget/s3c_udc_otg_regs.h

@@ -12,7 +12,7 @@
 #define __ASM_ARCH_REGS_USB_OTG_HS_H
 
 /* USB2.0 OTG Controller register */
-struct s3c_usbotg_phy {
+struct dwc2_usbotg_phy {
 	u32 phypwr;
 	u32 phyclk;
 	u32 rstcon;