ARM: dts: Ux500: move USB PHY pins to PHY device

The physical pins from the SoC are in a sense belonging to the
PHY device (AB8500 USB) rather than the MUSB USB IP block.
The driver definately assumes so: before this change it
complains that it cannot control the pins it is using:

abx5x0-usb ab8500-usb.0: could not get/set default pinstate

After this patch the warning goes away.

Cc: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

arch/arm/boot/dts/ste-snowball.dts

@@ -159,12 +159,6 @@
 				     "", "", "", "", "", "", "", "";
 		};
 
-		usb_per5@a03e0000 {
-			pinctrl-names = "default", "sleep";
-			pinctrl-0 = <&musb_default_mode>;
-			pinctrl-1 = <&musb_sleep_mode>;
-		};
-
 		sound {
 			compatible = "stericsson,snd-soc-mop500";
 
@@ -451,6 +445,12 @@
 						     "PM_GPIO42"; /* AB8500 GPIO42 */
 				};
 
+				ab8500_usb {
+					pinctrl-names = "default", "sleep";
+					pinctrl-0 = <&musb_default_mode>;
+					pinctrl-1 = <&musb_sleep_mode>;
+				};
+
 				ext_regulators: ab8500-ext-regulators {
 					ab8500_ext1_reg: ab8500_ext1 {
 						regulator-name = "ab8500-ext-supply1";