arm64: tegra: Remove property gpio-keys,name

gpio-keys,name is not a valid property supported by gpio-keys
driver so remove it from DTS.
Signed-off-by: Mark Zhang <markz@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>

arch/arm64/boot/dts/nvidia/tegra210-smaug.dts

@@ -1724,7 +1724,6 @@ cpu@3 {
 
 	gpio-keys {
 		compatible = "gpio-keys";
-		gpio-keys,name = "gpio-keys";
 
 		power {
 			label = "Power";