arm64: tegra: Rename GPIO hog nodes to match schema

GPIO hog nodes must have a "hog-" prefix or "-hog" suffix according to
the DT schema. Rename all such nodes to allow validation to pass.
Signed-off-by: Thierry Reding <treding@nvidia.com>

arch/arm64/boot/dts/nvidia/tegra210-p2894.dtsi

@@ -1383,7 +1383,7 @@ gpio5_6_7 {
 				};
 			};
 
-			gpio@0 {
+			hog-0 {
 				gpio-hog;
 				output-high;
 				gpios = <2 GPIO_ACTIVE_HIGH>,