arm64: tegra: Remove the Orin NX/Nano suspend key

As per the Orin Nano Dev Kit schematic, GPIO_G.02 is not available
on this device family. It should not be used at all on Orin NX/Nano.
Having this unused pin mapped as the suspend key can lead to
unpredictable behavior for low power modes.

Orin NX/Nano uses GPIO_EE.04 as both a "power" button and a "suspend"
button. However, we cannot have two gpio-keys mapped to the same
GPIO. Therefore remove the "suspend" key.

Cc: stable@vger.kernel.org
Fixes: e63472eda5ea ("arm64: tegra: Support Jetson Orin NX reference platform")
Signed-off-by: Ninad Malwade <nmalwade@nvidia.com>
Signed-off-by: Ivy Huang <yijuh@nvidia.com>
Link: https://lore.kernel.org/r/20250206224034.3691397-1-yijuh@nvidia.com
Signed-off-by: Thierry Reding <treding@nvidia.com>
(cherry picked from commit bb8a3ad25f098b6ea9b1d0f522427b4ad53a7bba mainline)

Bug 4868022

Change-Id: I8520b4b3a44ee56067ebadf3e3bc9a21ea125a70
Signed-off-by: Yi Ju Huang <yijuh@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/device/hardware/nvidia/t23x-public-dts/+/3344135
(cherry picked from commit 2f23bd48f5)
Reviewed-on: https://git-master.nvidia.com/r/c/device/hardware/nvidia/t23x-public-dts/+/3345342
Reviewed-by: Brad Griffis <bgriffis@nvidia.com>
GVS: buildbot_gerritrpt <buildbot_gerritrpt@nvidia.com>

tegra234-p3768-0000+p3767.dtsi

@@ -227,13 +227,6 @@
 			wakeup-event-action = <EV_ACT_ASSERTED>;
 			wakeup-source;
 		};
-
-		key-suspend {
-			label = "Suspend";
-			gpios = <&gpio TEGRA234_MAIN_GPIO(G, 2) GPIO_ACTIVE_LOW>;
-			linux,input-type = <EV_KEY>;
-			linux,code = <KEY_SLEEP>;
-		};
 	};
 
 	fan: pwm-fan {