ARM: imx25: set default phy_type and dr_mode for usbotg port

All currently supported i.MX25-based machines use phy_type = "utmi" and
dr_mode = "otg".  So this seems to be a sensible default.

This also doesn't hurt out-of-tree machines because up to now they had
to specify these two properties in the machine.dts which still takes
precedence by just overwriting the defaults added here.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Reviewed-by: Fabio Estevam <fabio.estevam@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

arch/arm/boot/dts/imx25-eukrea-mbimxsd25-baseboard.dts

@@ -179,8 +179,6 @@ &usbhost1 {
 };
 
 &usbotg {
-	phy_type = "utmi";
-	dr_mode = "otg";
 	external-vbus-divider;
 	status = "okay";
 };

arch/arm/boot/dts/imx25-pdk.dts

@@ -309,8 +309,6 @@ &usbhost1 {
 };
 
 &usbotg {
-	phy_type = "utmi";
-	dr_mode = "otg";
 	external-vbus-divider;
 	status = "okay";
 };

arch/arm/boot/dts/imx25.dtsi

@@ -544,6 +544,8 @@ usbotg: usb@53ff4000 {
 				clock-names = "ipg", "ahb", "per";
 				fsl,usbmisc = <&usbmisc 0>;
 				fsl,usbphy = <&usbphy0>;
+				phy_type = "utmi";
+				dr_mode = "otg";
 				status = "disabled";
 			};