arm64: dts: rockchip: use pin constants to describe gpios

Use macros to describe gpios will make the dts easier to
read and write.

Signed-off-by: Andy Yan <andy.yan@rock-chips.com>
[converted interrupt-gpios and new rk3399-evb backlight]
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
diff --git a/arch/arm64/boot/dts/rockchip/rk3399-evb.dts b/arch/arm64/boot/dts/rockchip/rk3399-evb.dts
index 3040a98..42033bc 100644
--- a/arch/arm64/boot/dts/rockchip/rk3399-evb.dts
+++ b/arch/arm64/boot/dts/rockchip/rk3399-evb.dts
@@ -85,7 +85,7 @@
 			240 241 242 243 244 245 246 247
 			248 249 250 251 252 253 254 255>;
 		default-brightness-level = <200>;
-		enable-gpios = <&gpio1 13 GPIO_ACTIVE_HIGH>;
+		enable-gpios = <&gpio1 RK_PB5 GPIO_ACTIVE_HIGH>;
 		pwms = <&pwm0 0 25000 0>;
 	};
 
@@ -128,7 +128,7 @@
 	vcc5v0_host: vcc5v0-host-regulator {
 		compatible = "regulator-fixed";
 		enable-active-high;
-		gpio = <&gpio4 25 GPIO_ACTIVE_HIGH>;
+		gpio = <&gpio4 RK_PD1 GPIO_ACTIVE_HIGH>;
 		pinctrl-names = "default";
 		pinctrl-0 = <&vcc5v0_host_en>;
 		regulator-name = "vcc5v0_host";
@@ -163,7 +163,7 @@
 	phy-mode = "rgmii";
 	pinctrl-names = "default";
 	pinctrl-0 = <&rgmii_pins>;
-	snps,reset-gpio = <&gpio3 15 GPIO_ACTIVE_LOW>;
+	snps,reset-gpio = <&gpio3 RK_PB7 GPIO_ACTIVE_LOW>;
 	snps,reset-active-low;
 	snps,reset-delays-us = <0 10000 50000>;
 	tx_delay = <0x28>;
@@ -196,7 +196,7 @@
 };
 
 &pcie0 {
-	ep-gpios = <&gpio3 13 GPIO_ACTIVE_HIGH>;
+	ep-gpios = <&gpio3 RK_PB5 GPIO_ACTIVE_HIGH>;
 	num-lanes = <4>;
 	pinctrl-names = "default";
 	pinctrl-0 = <&pcie_clkreqn>;