[PATCH 2/3] ARM: dts: imx6ul: mba6ulx: Fix gpio-keys button node names

[Alexander Stein]

Numbers are separated by dashes. Fixes the warnings:
arch/arm/boot/dts/nxp/imx/imx6ull-tqma6ull2-mba6ulx.dtb: gpio-keys:
'button1', 'button2', 'button3' do not match any of the regexes:
'^(button|event|key|switch|(button|event|key|switch)-[a-z0-9-]+|[a-z0-9-]+-(button|event|key|switch))$', 'pinctrl-[0-9]+'
 from schema $id: http://devicetree.org/schemas/input/gpio-keys.yaml#

Signed-off-by: Alexander Stein <alexander.stein at ew.tq-group.com>
---
 arch/arm/boot/dts/nxp/imx/mba6ulx.dtsi | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/arch/arm/boot/dts/nxp/imx/mba6ulx.dtsi b/arch/arm/boot/dts/nxp/imx/mba6ulx.dtsi
index 632ceadcca41..5a8b867d7d79 100644
--- a/arch/arm/boot/dts/nxp/imx/mba6ulx.dtsi
+++ b/arch/arm/boot/dts/nxp/imx/mba6ulx.dtsi
@@ -35,21 +35,21 @@ gpio_buttons: gpio-keys {
 		pinctrl-names = "default";
 		pinctrl-0 = <&pinctrl_buttons>;
 
-		button1 {
+		button-1 {
 			label = "s14";
 			linux,code = <KEY_1>;
 			gpios = <&expander_in0 0 GPIO_ACTIVE_LOW>;
 			wakeup-source;
 		};
 
-		button2 {
+		button-2 {
 			label = "s6";
 			linux,code = <KEY_2>;
 			gpios = <&expander_in0 1 GPIO_ACTIVE_LOW>;
 			wakeup-source;
 		};
 
-		button3 {
+		button-3 {
 			label = "s7";
 			linux,code = <KEY_3>;
 			gpios = <&expander_in0 2 GPIO_ACTIVE_LOW>;
-- 
2.34.1