ARM: tegra: colibri-eval: Fix power/wakeup key

Rather than a power key SODIMM pin 45 is actually used for wake-up
purposes which this patch fixes.
Signed-off-by: Marcel Ziswiler <marcel.ziswiler@toradex.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>

arch/arm/boot/dts/tegra30-colibri-eval-v3.dts

@@ -137,10 +137,10 @@ clk16m: clk@1 {
 	gpio-keys {
 		compatible = "gpio-keys";
 
-		power {
-			label = "Power";
+		wakeup {
+			label = "SODIMM pin 45 wakeup";
 			gpios = <&gpio TEGRA_GPIO(V, 1) GPIO_ACTIVE_HIGH>;
-			linux,code = <KEY_POWER>;
+			linux,code = <KEY_WAKEUP>;
 			debounce-interval = <10>;
 			gpio-key,wakeup;
 		};