ARM: dts: omap: add missing unit names to bandgap nodes

This patch fixes the following DTC warnings:

"bandgap has a reg or ranges property, but no unit name"

Signed-off-by: Javier Martinez Canillas <javier@osg.samsung.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
diff --git a/arch/arm/boot/dts/omap34xx.dtsi b/arch/arm/boot/dts/omap34xx.dtsi
index 387dc31..5cdba1f 100644
--- a/arch/arm/boot/dts/omap34xx.dtsi
+++ b/arch/arm/boot/dts/omap34xx.dtsi
@@ -55,7 +55,7 @@
 			};
 		};
 
-		bandgap {
+		bandgap@48002524 {
 			reg = <0x48002524 0x4>;
 			compatible = "ti,omap34xx-bandgap";
 			#thermal-sensor-cells = <0>;
diff --git a/arch/arm/boot/dts/omap36xx.dtsi b/arch/arm/boot/dts/omap36xx.dtsi
index f19c87b..ce1e242 100644
--- a/arch/arm/boot/dts/omap36xx.dtsi
+++ b/arch/arm/boot/dts/omap36xx.dtsi
@@ -87,7 +87,7 @@
 			};
 		};
 
-		bandgap {
+		bandgap@48002524 {
 			reg = <0x48002524 0x4>;
 			compatible = "ti,omap36xx-bandgap";
 			#thermal-sensor-cells = <0>;
diff --git a/arch/arm/boot/dts/omap443x.dtsi b/arch/arm/boot/dts/omap443x.dtsi
index 0adfa1d1..fc6a861 100644
--- a/arch/arm/boot/dts/omap443x.dtsi
+++ b/arch/arm/boot/dts/omap443x.dtsi
@@ -35,7 +35,7 @@
 	};
 
 	ocp {
-		bandgap: bandgap {
+		bandgap: bandgap@4a002260 {
 			reg = <0x4a002260 0x4
 			       0x4a00232C 0x4>;
 			compatible = "ti,omap4430-bandgap";
diff --git a/arch/arm/boot/dts/omap4460.dtsi b/arch/arm/boot/dts/omap4460.dtsi
index 5fa68f19..ef66e12 100644
--- a/arch/arm/boot/dts/omap4460.dtsi
+++ b/arch/arm/boot/dts/omap4460.dtsi
@@ -40,7 +40,7 @@
 	};
 
 	ocp {
-		bandgap: bandgap {
+		bandgap: bandgap@4a002260 {
 			reg = <0x4a002260 0x4
 			       0x4a00232C 0x4
 			       0x4a002378 0x18>;