ARM: dts: ux500: Fix channel names attributes

The AB8500/AB8505 is providing ADC channels and do so
using the standard property "io-channel-names" not the
mistakenly singular form "io-channel-name".

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

arch/arm/boot/dts/ste-ab8500.dtsi

@@ -124,7 +124,7 @@
 					compatible = "stericsson,abx500-temp";
 					io-channels = <&gpadc 0x06>,
 						      <&gpadc 0x07>;
-					io-channel-name = "aux1", "aux2";
+					io-channel-names = "aux1", "aux2";
 				};
 
 				ab8500_battery: ab8500_battery {
@@ -136,7 +136,7 @@
 					compatible = "stericsson,ab8500-fg";
 					battery	   = <&ab8500_battery>;
 					io-channels = <&gpadc 0x08>;
-					io-channel-name = "main_bat_v";
+					io-channel-names = "main_bat_v";
 				};
 
 				ab8500_btemp {
@@ -144,7 +144,7 @@
 					battery	   = <&ab8500_battery>;
 					io-channels = <&gpadc 0x02>,
 						      <&gpadc 0x01>;
-					io-channel-name = "btemp_ball",
+					io-channel-names = "btemp_ball",
 							"bat_ctrl";
 				};
 
@@ -156,7 +156,7 @@
 						      <&gpadc 0x0a>,
 						      <&gpadc 0x09>,
 						      <&gpadc 0x0b>;
-					io-channel-name = "main_charger_v",
+					io-channel-names = "main_charger_v",
 							"main_charger_c",
 							"vbus_v",
 							"usb_charger_c";

arch/arm/boot/dts/ste-ab8505.dtsi

@@ -99,7 +99,7 @@
 					compatible = "stericsson,ab8500-fg";
 					battery = <&ab8500_battery>;
 					io-channels = <&gpadc 0x08>;
-					io-channel-name = "main_bat_v";
+					io-channel-names = "main_bat_v";
 				};
 
 				ab8500_btemp {
@@ -108,7 +108,7 @@
 					battery = <&ab8500_battery>;
 					io-channels = <&gpadc 0x02>,
 						      <&gpadc 0x01>;
-					io-channel-name = "btemp_ball",
+					io-channel-names = "btemp_ball",
 							  "bat_ctrl";
 				};
 
@@ -119,7 +119,7 @@
 					vddadc-supply = <&ab8500_ldo_adc_reg>;
 					io-channels = <&gpadc 0x09>,
 						      <&gpadc 0x0b>;
-					io-channel-name = "vbus_v",
+					io-channel-names = "vbus_v",
 							  "usb_charger_c";
 				};