drivers: usb: musb: adopt musb backend driver to driver model

Currently all backend driver ops uses hard coded physical
address, so to adopt the driver to DM, add device pointer to ops
call backs so that drivers can get physical addresses from the
usb driver priv/plat data.

Signed-off-by: Mugunthan V N <mugunthanvnm@ti.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
diff --git a/arch/arm/mach-omap2/am33xx/board.c b/arch/arm/mach-omap2/am33xx/board.c
index 2ce7790..581c0ab 100644
--- a/arch/arm/mach-omap2/am33xx/board.c
+++ b/arch/arm/mach-omap2/am33xx/board.c
@@ -148,7 +148,7 @@
 };
 
 #ifdef CONFIG_AM335X_USB0
-static void am33xx_otg0_set_phy_power(u8 on)
+static void am33xx_otg0_set_phy_power(struct udevice *dev, u8 on)
 {
 	am33xx_usb_set_phy_power(on, &cdev->usb_ctrl0);
 }
@@ -167,7 +167,7 @@
 #endif
 
 #ifdef CONFIG_AM335X_USB1
-static void am33xx_otg1_set_phy_power(u8 on)
+static void am33xx_otg1_set_phy_power(struct udevice *dev, u8 on)
 {
 	am33xx_usb_set_phy_power(on, &cdev->usb_ctrl1);
 }