dm: exynos: dts: Use GPIO bank phandles for GPIOs

U-Boot now supports using GPIOs using bank phandles instead of global
numbers. Update the exynos device tree files to use this.

Signed-off-by: Simon Glass <sjg@chromium.org>
Acked-by: Minkyu Kang <mk7.kang@samsung.com>
diff --git a/arch/arm/dts/exynos5250-snow.dts b/arch/arm/dts/exynos5250-snow.dts
index bac5015..649e4bd 100644
--- a/arch/arm/dts/exynos5250-snow.dts
+++ b/arch/arm/dts/exynos5250-snow.dts
@@ -44,7 +44,7 @@
 			reg = <0x1e>;
 			compatible = "google,cros-ec";
 			i2c-max-frequency = <100000>;
-			ec-interrupt = <&gpio 182 1>;
+			ec-interrupt = <&gpx1 6 GPIO_ACTIVE_LOW>;
 		};
 
 		power-regulator@48 {
@@ -68,7 +68,7 @@
 			reg = <0>;
 			compatible = "google,cros-ec";
 			spi-max-frequency = <5000000>;
-			ec-interrupt = <&gpio 182 1>;
+			ec-interrupt = <&gpx1 6 GPIO_ACTIVE_LOW>;
 			optimise-flash-write;
 			status = "disabled";
 		};
@@ -76,7 +76,7 @@
 
 	sound@3830000 {
 		samsung,codec-type = "max98095";
-		codec-enable-gpio = <&gpio 0xb7 0>;
+		codec-enable-gpio = <&gpx1 7 GPIO_ACTIVE_HIGH>;
 	};
 
 	sound@12d60000 {
@@ -131,11 +131,11 @@
 	};
 
 	ehci@12110000 {
-		samsung,vbus-gpio = <&gpio 0xb1 0>; /* X11 */
+		samsung,vbus-gpio = <&gpx1 1 GPIO_ACTIVE_HIGH>;
 	};
 
 	xhci@12000000 {
-		samsung,vbus-gpio = <&gpio 0xbf 0>; /* X27 */
+		samsung,vbus-gpio = <&gpx2 7 GPIO_ACTIVE_HIGH>;
 	};
 
 	tmu@10060000 {