ARM: zynq: Remove DTC 1.4.2 warnings

DTC 1.4.2 reports these warnings:
Warning (unit_address_vs_reg): Node /memory has a reg or ranges
property, but no unit name
Warning (unit_address_vs_reg): Node /pmu has a reg or ranges property,
but no unit name
Warning (unit_address_vs_reg): Node /fixedregulator@0 has a unit name,
but no reg property

This patch is fixing them.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>

arch/arm/dts/zynq-7000.dtsi

@@ -6,9 +6,10 @@
  *
  * SPDX-License-Identifier:	GPL-2.0+
  */
-/include/ "skeleton.dtsi"
 
 / {
+	#address-cells = <1>;
+	#size-cells = <1>;
 	compatible = "xlnx,zynq-7000";
 
 	cpus {
@@ -37,14 +38,14 @@
 		};
 	};
 
-	pmu {
+	pmu@f8891000 {
 		compatible = "arm,cortex-a9-pmu";
 		interrupts = <0 5 4>, <0 6 4>;
 		interrupt-parent = <&intc>;
 		reg = < 0xf8891000 0x1000 0xf8893000 0x1000 >;
 	};
 
-	regulator_vccpint: fixedregulator@0 {
+	regulator_vccpint: fixedregulator {
 		compatible = "regulator-fixed";
 		regulator-name = "VCCPINT";
 		regulator-min-microvolt = <1000000>;

arch/arm/dts/zynq-microzed.dts

@@ -18,7 +18,7 @@
 		mmc0 = &sdhci0;
 	};
 
-	memory {
+	memory@0 {
 		device_type = "memory";
 		reg = <0 0x40000000>;
 	};

arch/arm/dts/zynq-picozed.dts

@@ -16,7 +16,7 @@
 		serial0 = &uart1;
 	};
 
-	memory {
+	memory@0 {
 		device_type = "memory";
 		reg = <0 0x40000000>;
 	};

arch/arm/dts/zynq-topic-miami.dts

@@ -21,7 +21,7 @@
 		mmc0 = &sdhci0;
 	};
 
-	memory {
+	memory@0 {
 		device_type = "memory";
 		reg = <0x0 0x40000000>;
 	};

arch/arm/dts/zynq-zc702.dts

@@ -21,7 +21,7 @@
 		mmc0 = &sdhci0;
 	};
 
-	memory {
+	memory@0 {
 		device_type = "memory";
 		reg = <0x0 0x40000000>;
 	};

arch/arm/dts/zynq-zc706.dts

@@ -21,7 +21,7 @@
 		mmc0 = &sdhci0;
 	};
 
-	memory {
+	memory@0 {
 		device_type = "memory";
 		reg = <0x0 0x40000000>;
 	};

arch/arm/dts/zynq-zc770-xm010.dts

@@ -25,7 +25,7 @@
 		stdout-path = "serial0:115200n8";
 	};
 
-	memory {
+	memory@0 {
 		device_type = "memory";
 		reg = <0x0 0x40000000>;
 	};

arch/arm/dts/zynq-zc770-xm011.dts

@@ -23,7 +23,7 @@
 		stdout-path = "serial0:115200n8";
 	};
 
-	memory {
+	memory@0 {
 		device_type = "memory";
 		reg = <0x0 0x40000000>;
 	};

arch/arm/dts/zynq-zc770-xm012.dts

@@ -24,7 +24,7 @@
 		stdout-path = "serial0:115200n8";
 	};
 
-	memory {
+	memory@0 {
 		device_type = "memory";
 		reg = <0x0 0x40000000>;
 	};

arch/arm/dts/zynq-zc770-xm013.dts

@@ -25,7 +25,7 @@
 		stdout-path = "serial0:115200n8";
 	};
 
-	memory {
+	memory@0 {
 		device_type = "memory";
 		reg = <0x0 0x40000000>;
 	};

arch/arm/dts/zynq-zed.dts

@@ -20,7 +20,7 @@
 		mmc0 = &sdhci0;
 	};
 
-	memory {
+	memory@0 {
 		device_type = "memory";
 		reg = <0x0 0x20000000>;
 	};

arch/arm/dts/zynq-zybo.dts

@@ -20,7 +20,7 @@
 		mmc0 = &sdhci0;
 	};
 
-	memory {
+	memory@0 {
 		device_type = "memory";
 		reg = <0x0 0x20000000>;
 	};