ARM: dts: imx: Change spba to spba-bus

With the updated dt-bindings for the spba-bus, rename spba@xxxx
to spba-bus@xxxx.  There are no functional changes.

Signed-off-by: Adam Ford <aford173@gmail.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

arch/arm/boot/dts/imx25.dtsi

@@ -200,7 +200,7 @@
 			};
 		};
 
-		spba@50000000 {
+		spba-bus@50000000 {
 			compatible = "fsl,spba-bus", "simple-bus";
 			#address-cells = <1>;
 			#size-cells = <1>;

arch/arm/boot/dts/imx31.dtsi

@@ -166,7 +166,7 @@
 			};
 		};
 
-		spba@50000000 {
+		spba-bus@50000000 {
 			compatible = "fsl,spba-bus", "simple-bus";
 			#address-cells = <1>;
 			#size-cells = <1>;

arch/arm/boot/dts/imx50.dtsi

@@ -108,7 +108,7 @@
 			reg = <0x50000000 0x10000000>;
 			ranges;
 
-			spba@50000000 {
+			spba-bus@50000000 {
 				compatible = "fsl,spba-bus", "simple-bus";
 				#address-cells = <1>;
 				#size-cells = <1>;

arch/arm/boot/dts/imx51.dtsi

@@ -178,7 +178,7 @@
 			reg = <0x70000000 0x10000000>;
 			ranges;
 
-			spba@70000000 {
+			spba-bus@70000000 {
 				compatible = "fsl,spba-bus", "simple-bus";
 				#address-cells = <1>;
 				#size-cells = <1>;

arch/arm/boot/dts/imx53.dtsi

@@ -229,7 +229,7 @@
 			reg = <0x50000000 0x10000000>;
 			ranges;
 
-			spba@50000000 {
+			spba-bus@50000000 {
 				compatible = "fsl,spba-bus", "simple-bus";
 				#address-cells = <1>;
 				#size-cells = <1>;

arch/arm/boot/dts/imx6qdl.dtsi

@@ -481,7 +481,7 @@
 					status = "okay";
 				};
 
-				spba@203c000 {
+				spba-bus@203c000 {
 					reg = <0x0203c000 0x4000>;
 				};
 			};