at91: fix devicetree warnings

This commit fixes various devicetree warnings in the at91 devicetrees
like:
arch/arm/dts/sama5d36ek_cmp.dtb: Warning (avoid_unnecessary_addr_size): /gpio_keys: unnecessary #address-cells/#size-cells without "ranges" or child "reg" property

These warnings make buildman report failed builds for most of at91 boards.
Thus, fixing it.

Signed-off-by: Eugen Hristev <eugen.hristev@microchip.com>

arch/arm/dts/at91-vinco.dts

@@ -152,6 +152,8 @@
 			};
 
 			tcb2: timer@fc024000 {
+				#address-cells = <1>;
+				#size-cells = <0>;
 				timer@0 {
 					compatible = "atmel,tcb-timer";
 					reg = <0>;

arch/arm/dts/at91sam9260.dtsi

@@ -37,9 +37,6 @@
 		spi0 = &spi0;
 	};
 	cpus {
-		#address-cells = <0>;
-		#size-cells = <0>;
-
 		cpu {
 			compatible = "arm,arm926ej-s";
 			device_type = "cpu";

arch/arm/dts/at91sam9261.dtsi

@@ -34,9 +34,6 @@
 	};
 
 	cpus {
-		#address-cells = <0>;
-		#size-cells = <0>;
-
 		cpu {
 			compatible = "arm,arm926ej-s";
 			device_type = "cpu";

arch/arm/dts/at91sam9263.dtsi

@@ -36,9 +36,6 @@
 	};
 
 	cpus {
-		#address-cells = <0>;
-		#size-cells = <0>;
-
 		cpu {
 			compatible = "arm,arm926ej-s";
 			device_type = "cpu";

arch/arm/dts/at91sam9g45.dtsi

@@ -41,9 +41,6 @@
 		pwm0 = &pwm0;
 	};
 	cpus {
-		#address-cells = <0>;
-		#size-cells = <0>;
-
 		cpu {
 			compatible = "arm,arm926ej-s";
 			device_type = "cpu";
@@ -1042,8 +1039,6 @@
 			};
 
 			adc0: adc@fffb0000 {
-				#address-cells = <1>;
-				#size-cells = <0>;
 				compatible = "atmel,at91sam9g45-adc";
 				reg = <0xfffb0000 0x100>;
 				interrupts = <20 IRQ_TYPE_LEVEL_HIGH 0>;
@@ -1086,10 +1081,6 @@
 				clocks = <&isi_clk>;
 				clock-names = "isi_clk";
 				status = "disabled";
-				port {
-					#address-cells = <1>;
-					#size-cells = <0>;
-				};
 			};
 
 			pwm0: pwm@fffb8000 {

arch/arm/dts/at91sam9n12.dtsi

@@ -38,9 +38,6 @@
 		spi0 = &spi0;
 	};
 	cpus {
-		#address-cells = <0>;
-		#size-cells = <0>;
-
 		cpu {
 			compatible = "arm,arm926ej-s";
 			device_type = "cpu";

arch/arm/dts/at91sam9rl.dtsi

@@ -38,9 +38,6 @@
 	};
 
 	cpus {
-		#address-cells = <0>;
-		#size-cells = <0>;
-
 		cpu {
 			compatible = "arm,arm926ej-s";
 			device_type = "cpu";
@@ -253,8 +250,6 @@
 			};
 
 			adc0: adc@fffd0000 {
-				#address-cells = <1>;
-				#size-cells = <0>;
 				compatible = "atmel,at91sam9rl-adc";
 				reg = <0xfffd0000 0x100>;
 				interrupts = <20 IRQ_TYPE_LEVEL_HIGH 0>;

arch/arm/dts/at91sam9x5.dtsi

@@ -41,9 +41,6 @@
 	};
 
 	cpus {
-		#address-cells = <0>;
-		#size-cells = <0>;
-
 		cpu {
 			compatible = "arm,arm926ej-s";
 			device_type = "cpu";
@@ -1048,8 +1045,6 @@
 			};
 
 			adc0: adc@f804c000 {
-				#address-cells = <1>;
-				#size-cells = <0>;
 				compatible = "atmel,at91sam9x5-adc";
 				reg = <0xf804c000 0x100>;
 				interrupts = <19 IRQ_TYPE_LEVEL_HIGH 0>;

arch/arm/dts/sama5d27_som1.dtsi

@@ -55,7 +55,6 @@
 
 	aliases {
 		spi0 = &qspi1;
-		u-boot,dm-pre-reloc;
 	};
 
 	ahb {

arch/arm/dts/sama5d3.dtsi

@@ -238,10 +238,6 @@
 				clocks = <&isi_clk>;
 				clock-names = "isi_clk";
 				status = "disabled";
-				port {
-					#address-cells = <1>;
-					#size-cells = <0>;
-				};
 			};
 
 			sfr: sfr@f0038000 {

arch/arm/dts/sama5d3xmb_cmp.dtsi

@@ -221,8 +221,6 @@
 		compatible = "gpio-keys";
 		status = "okay";
 
-		#address-cells = <1>;
-		#size-cells = <0>;
 		pinctrl-names = "default";
 		pinctrl-0 = <&pinctrl_gpio_keys>;
 

arch/arm/dts/usb_a9263.dts

@@ -127,8 +127,6 @@
 
 	gpio_keys {
 		compatible = "gpio-keys";
-		#address-cells = <1>;
-		#size-cells = <0>;
 
 		user_pb {
 			label = "user_pb";