arm: allwinner: dts: a20: Sync A20 dts(i) files from Linux 5.1-rc2

Sync sun7i-a20 dts(i) files from Linux 5.1-rc2

Linux commit details about the sun7i-a20* sync:
"ARM: dts: sun7i: bananapi: Add GPIO banks regulators"
(sha1: 09c6572290f018d73ec2e812e28bada34d41815f)

Here are U-Boot specific dts changes.

- s/uart0_pins_a/uart0_pb_pins for
  sun7i-a20-ainol-aw1.dts
  sun7i-a20-m5.dts
  sun7i-a20-primo73.dts
  sun7i-a20-yones-toptech-bd1078.dts
  sunxi-itead-core-common.dtsi
- s/gmac_pins_mii_a/gmac_rgmii_pins for
  sun7i-a20-m5.dts
- drop i2c0, i2c1 pins from
  sunxi-itead-core-common.dtsi
- drop mmc0 pins from
  sun7i-a20-primo73.dts

Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
diff --git a/arch/arm/dts/sun7i-a20-pcduino3.dts b/arch/arm/dts/sun7i-a20-pcduino3.dts
index c576f10..a72ed43 100644
--- a/arch/arm/dts/sun7i-a20-pcduino3.dts
+++ b/arch/arm/dts/sun7i-a20-pcduino3.dts
@@ -63,8 +63,6 @@
 
 	leds {
 		compatible = "gpio-leds";
-		pinctrl-names = "default";
-		pinctrl-0 = <&led_pins_pcduino3>;
 
 		tx {
 			label = "pcduino3:green:tx";
@@ -77,23 +75,22 @@
 		};
 	};
 
-	gpio_keys {
+	gpio-keys {
 		compatible = "gpio-keys";
-		pinctrl-names = "default";
-		pinctrl-0 = <&key_pins_pcduino3>;
-		#address-cells = <1>;
-		#size-cells = <0>;
-		button@0 {
+
+		back {
 			label = "Key Back";
 			linux,code = <KEY_BACK>;
 			gpios = <&pio 7 17 GPIO_ACTIVE_LOW>;
 		};
-		button@1 {
+
+		home {
 			label = "Key Home";
 			linux,code = <KEY_HOME>;
 			gpios = <&pio 7 18 GPIO_ACTIVE_LOW>;
 		};
-		button@2 {
+
+		menu {
 			label = "Key Menu";
 			linux,code = <KEY_MENU>;
 			gpios = <&pio 7 19 GPIO_ACTIVE_LOW>;
@@ -124,7 +121,7 @@
 
 &gmac {
 	pinctrl-names = "default";
-	pinctrl-0 = <&gmac_pins_mii_a>;
+	pinctrl-0 = <&gmac_mii_pins>;
 	phy = <&phy1>;
 	phy-mode = "mii";
 	status = "okay";
@@ -135,8 +132,6 @@
 };
 
 &i2c0 {
-	pinctrl-names = "default";
-	pinctrl-0 = <&i2c0_pins_a>;
 	status = "okay";
 
 	axp209: pmic@34 {
@@ -150,13 +145,11 @@
 
 &ir0 {
 	pinctrl-names = "default";
-	pinctrl-0 = <&ir0_rx_pins_a>;
+	pinctrl-0 = <&ir0_rx_pin>;
 	status = "okay";
 };
 
 &mmc0 {
-	pinctrl-names = "default";
-	pinctrl-0 = <&mmc0_pins_a>;
 	vmmc-supply = <&reg_vcc3v3>;
 	bus-width = <4>;
 	cd-gpios = <&pio 7 1 GPIO_ACTIVE_LOW>; /* PH1 */
@@ -176,17 +169,7 @@
 };
 
 &pio {
-	led_pins_pcduino3: led_pins@0 {
-		pins = "PH15", "PH16";
-		function = "gpio_out";
-	};
-
-	key_pins_pcduino3: key_pins@0 {
-		pins = "PH17", "PH18", "PH19";
-		function = "gpio_in";
-	};
-
-	usb0_id_detect_pin: usb0_id_detect_pin@0 {
+	usb0_id_detect_pin: usb0-id-detect-pin {
 		pins = "PH4";
 		function = "gpio_in";
 		bias-pull-up;
@@ -233,7 +216,7 @@
 
 &uart0 {
 	pinctrl-names = "default";
-	pinctrl-0 = <&uart0_pins_a>;
+	pinctrl-0 = <&uart0_pb_pins>;
 	status = "okay";
 };