ARM: dts: vf610-zii-ssmb-spu3: Fix W=1 level warnings

Fix a couple of things that were causing warning when building DTB
with W=1.

Cc: Fabio Estevam <fabio.estevam@nxp.com>
Cc: cphealy@gmail.com
Cc: linux-arm-kernel@lists.infradead.org
Cc: devicetree@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

arch/arm/boot/dts/vf610-zii-ssmb-spu3.dts

@@ -23,7 +23,7 @@ chosen {
 		stdout-path = &uart0;
 	};
 
-	memory {
+	memory@80000000 {
 		reg = <0x80000000 0x20000000>;
 	};
 
@@ -128,8 +128,6 @@ switch0: switch0@0 {
 			compatible = "marvell,mv88e6190";
 			pinctrl-0 = <&pinctrl_gpio_switch0>;
 			pinctrl-names = "default";
-			#address-cells = <1>;
-			#size-cells = <0>;
 			reg = <0>;
 			eeprom-length = <65536>;
 			reset-gpios = <&gpio3 11 GPIO_ACTIVE_LOW>;