ARM: tegra: Enable power key on Venice2

Contrary to the rest of the keyboard, which is connected to the ChromeOS
embedded controller, the power key is hooked up to a GPIO. Add a device
tree node to handle it.

Signed-off-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Stephen Warren <swarren@nvidia.com>
1 file changed