sunxi: DT: A64: update board .dts files from Linux

Update the .dts files for the various boards with an Allwinner A64 SoC.
This is as of v4.18-rc3, exactly Linux commit:
commit 818668055c9d588c9a9d151e3b258ed1adacba0b
Author: Jagan Teki <jagan@amarulasolutions.com>
Date:   Mon Apr 23 12:02:39 2018 +0530

    arm64: dts: allwinner: a64: bananapi-m64: add usb otg

It updates the existing DT files, adds the newly added axp803.dtsi and
removes our temporary kludge file to get Ethernet support in U-Boot.
I left the amarula-relic alone, as this DT has not reached mainline yet.
The changes are not critical anyway, and the next sync will fix this.

Signed-off-by: Andre Przywara <andre.przywara@arm.com>
Acked-by: Maxime Ripard <maxime.ripard@bootlin.com>
Acked-by: Jagan Teki <jagan@amarulasolutions.com>
Tested-by: Jagan Teki <jagan@amarulasolutions.com>
diff --git a/arch/arm/dts/axp803.dtsi b/arch/arm/dts/axp803.dtsi
new file mode 100644
index 0000000..e5eae8b
--- /dev/null
+++ b/arch/arm/dts/axp803.dtsi
@@ -0,0 +1,155 @@
+/*
+ * Copyright 2017 Icenowy Zheng <icenowy@aosc.xyz>
+ *
+ * This file is dual-licensed: you can use it either under the terms
+ * of the GPL or the X11 license, at your option. Note that this dual
+ * licensing only applies to this file, and not this project as a
+ * whole.
+ *
+ *  a) This file is free software; you can redistribute it and/or
+ *     modify it under the terms of the GNU General Public License as
+ *     published by the Free Software Foundation; either version 2 of the
+ *     License, or (at your option) any later version.
+ *
+ *     This file is distributed in the hope that it will be useful,
+ *     but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *     GNU General Public License for more details.
+ *
+ * Or, alternatively,
+ *
+ *  b) Permission is hereby granted, free of charge, to any person
+ *     obtaining a copy of this software and associated documentation
+ *     files (the "Software"), to deal in the Software without
+ *     restriction, including without limitation the rights to use,
+ *     copy, modify, merge, publish, distribute, sublicense, and/or
+ *     sell copies of the Software, and to permit persons to whom the
+ *     Software is furnished to do so, subject to the following
+ *     conditions:
+ *
+ *     The above copyright notice and this permission notice shall be
+ *     included in all copies or substantial portions of the Software.
+ *
+ *     THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ *     EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
+ *     OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ *     NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
+ *     HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+ *     WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ *     FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ *     OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+/*
+ * AXP803 Integrated Power Management Chip
+ * http://files.pine64.org/doc/datasheet/pine64/AXP803_Datasheet_V1.0.pdf
+ */
+
+&axp803 {
+	interrupt-controller;
+	#interrupt-cells = <1>;
+
+	regulators {
+		/* Default work frequency for buck regulators */
+		x-powers,dcdc-freq = <3000>;
+
+		reg_aldo1: aldo1 {
+			regulator-name = "aldo1";
+		};
+
+		reg_aldo2: aldo2 {
+			regulator-name = "aldo2";
+		};
+
+		reg_aldo3: aldo3 {
+			regulator-name = "aldo3";
+		};
+
+		reg_dc1sw: dc1sw {
+			regulator-name = "dc1sw";
+		};
+
+		reg_dcdc1: dcdc1 {
+			regulator-name = "dcdc1";
+		};
+
+		reg_dcdc2: dcdc2 {
+			regulator-name = "dcdc2";
+		};
+
+		reg_dcdc3: dcdc3 {
+			regulator-name = "dcdc3";
+		};
+
+		reg_dcdc4: dcdc4 {
+			regulator-name = "dcdc4";
+		};
+
+		reg_dcdc5: dcdc5 {
+			regulator-name = "dcdc5";
+		};
+
+		reg_dcdc6: dcdc6 {
+			regulator-name = "dcdc6";
+		};
+
+		reg_dldo1: dldo1 {
+			regulator-name = "dldo1";
+		};
+
+		reg_dldo2: dldo2 {
+			regulator-name = "dldo2";
+		};
+
+		reg_dldo3: dldo3 {
+			regulator-name = "dldo3";
+		};
+
+		reg_dldo4: dldo4 {
+			regulator-name = "dldo4";
+		};
+
+		reg_eldo1: eldo1 {
+			regulator-name = "eldo1";
+		};
+
+		reg_eldo2: eldo2 {
+			regulator-name = "eldo2";
+		};
+
+		reg_eldo3: eldo3 {
+			regulator-name = "eldo3";
+		};
+
+		reg_fldo1: fldo1 {
+			regulator-name = "fldo1";
+		};
+
+		reg_fldo2: fldo2 {
+			regulator-name = "fldo2";
+		};
+
+		reg_ldo_io0: ldo-io0 {
+			regulator-name = "ldo-io0";
+			status = "disabled";
+		};
+
+		reg_ldo_io1: ldo-io1 {
+			regulator-name = "ldo-io1";
+			status = "disabled";
+		};
+
+		reg_rtc_ldo: rtc-ldo {
+			/* RTC_LDO is a fixed, always-on regulator */
+			regulator-always-on;
+			regulator-min-microvolt = <3000000>;
+			regulator-max-microvolt = <3000000>;
+			regulator-name = "rtc-ldo";
+		};
+
+		reg_drivevbus: drivevbus {
+			regulator-name = "drivevbus";
+			status = "disabled";
+		};
+	};
+};