arm64: tegra: Remove undocumented battery-name property

battery-name is not a documented property, so drop it to avoid
validation failures.

Signed-off-by: Thierry Reding <treding@nvidia.com>

arch/arm64/boot/dts/nvidia/tegra132-norrin.dts

@@ -781,7 +781,6 @@ TEGRA_GPIO(J, 0)
 				battery: smart-battery {
 					compatible = "sbs,sbs-battery";
 					reg = <0xb>;
-					battery-name = "battery";
 					sbs,i2c-retry-count = <2>;
 					sbs,poll-retry-count = <10>;
 				/*	power-supplies = <&charger>; */

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

@@ -1330,7 +1330,6 @@ ec_i2c_0: i2c-tunnel {
 				battery: bq27742@55 {
 					compatible = "ti,bq27742";
 					reg = <0x55>;
-					battery-name = "battery";
 				};
 			};
 		};