arm64: zynqmp: Rename zynqmp-power node to power-management

Rename zynqmp-power node name to power-management which is more aligned
with generic node name recommendation.

Signed-off-by: Michal Simek <michal.simek@amd.com>
Link: https://lore.kernel.org/r/a2f7fe30e3630c262c2773a595b7a0c8918573a0.1704359569.git.michal.simek@amd.com
diff --git a/arch/arm/dts/zynqmp.dtsi b/arch/arm/dts/zynqmp.dtsi
index e5dbf65..63238c0 100644
--- a/arch/arm/dts/zynqmp.dtsi
+++ b/arch/arm/dts/zynqmp.dtsi
@@ -198,7 +198,7 @@
 			method = "smc";
 			bootph-all;
 
-			zynqmp_power: zynqmp-power {
+			zynqmp_power: power-management {
 				bootph-all;
 				compatible = "xlnx,zynqmp-power";
 				interrupt-parent = <&gic>;