arm64: dts: exynos: gs101-pixel-common: add nvmem-reboot-mode

Add the 'nvmem-reboot-mode' which is used to communicate a requested
boot mode to the boot loader.

Signed-off-by: André Draszik <andre.draszik@linaro.org>
Reviewed-by: Peter Griffin <peter.griffin@linaro.org>
Link: https://lore.kernel.org/r/20250524-b4-max77759-mfd-dts-v2-3-b479542eb97d@linaro.org
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>

Author: andred

arch/arm64/boot/dts/exynos/google/gs101-pixel-common.dtsi

@@ -60,6 +60,21 @@
 		};
 	};
 
+	reboot-mode {
+		compatible = "nvmem-reboot-mode";
+		nvmem-cells = <&nvmem_reboot_mode>;
+		nvmem-cell-names = "reboot-mode";
+		mode-bootloader = <0x800000fc>;
+		mode-charge = <0x8000000a>;
+		mode-dm-verity-device-corrupted = <0x80000050>;
+		mode-fastboot = <0x800000fa>;
+		mode-reboot-ab-update = <0x80000052>;
+		mode-recovery = <0x800000ff>;
+		mode-rescue = <0x800000f9>;
+		mode-shutdown-thermal = <0x80000051>;
+		mode-shutdown-thermal-battery = <0x80000051>;
+	};
+
 	/* TODO: Remove this once PMIC is implemented  */
 	reg_placeholder: regulator-0 {
 		compatible = "regulator-fixed";
@@ -224,7 +239,7 @@
 				#address-cells = <1>;
 				#size-cells = <1>;
 
-				reboot-mode@0 {
+				nvmem_reboot_mode: reboot-mode@0 {
 					reg = <0x0 0x4>;
 				};