Revert "arm64: dts: marvell: add CPU Idle power state support on Armada 7K/8K"

This reverts commit 8ed46368.

This commit breaks boot on Armada 8K based systems. Reverting it makes
affected systems boot again.
Reported-by: Sergey Matyukevich <geomatsi@gmail.com>
Signed-off-by: Baruch Siach <baruch@tkos.co.il>
Signed-off-by: Gregory CLEMENT <gregory.clement@bootlin.com>

arch/arm64/boot/dts/marvell/armada-ap806-quad.dtsi

@@ -20,28 +20,24 @@ cpu0: cpu@0 {
 			compatible = "arm,cortex-a72", "arm,armv8";
 			reg = <0x000>;
 			enable-method = "psci";
-			cpu-idle-states = <&CPU_SLEEP_0>;
 		};
 		cpu1: cpu@1 {
 			device_type = "cpu";
 			compatible = "arm,cortex-a72", "arm,armv8";
 			reg = <0x001>;
 			enable-method = "psci";
-			cpu-idle-states = <&CPU_SLEEP_0>;
 		};
 		cpu2: cpu@100 {
 			device_type = "cpu";
 			compatible = "arm,cortex-a72", "arm,armv8";
 			reg = <0x100>;
 			enable-method = "psci";
-			cpu-idle-states = <&CPU_SLEEP_0>;
 		};
 		cpu3: cpu@101 {
 			device_type = "cpu";
 			compatible = "arm,cortex-a72", "arm,armv8";
 			reg = <0x101>;
 			enable-method = "psci";
-			cpu-idle-states = <&CPU_SLEEP_0>;
 		};
 	};
 };

arch/arm64/boot/dts/marvell/armada-ap806.dtsi

@@ -28,33 +28,6 @@ psci {
 		method = "smc";
 	};
 
-	cpus {
-		#address-cells = <1>;
-		#size-cells = <0>;
-
-		idle_states {
-			entry_method = "arm,pcsi";
-
-			CPU_SLEEP_0: cpu-sleep-0 {
-				compatible = "arm,idle-state";
-				local-timer-stop;
-				arm,psci-suspend-param = <0x0010000>;
-				entry-latency-us = <80>;
-				exit-latency-us  = <160>;
-				min-residency-us = <320>;
-			};
-
-			CLUSTER_SLEEP_0: cluster-sleep-0 {
-				compatible = "arm,idle-state";
-				local-timer-stop;
-				arm,psci-suspend-param = <0x1010000>;
-				entry-latency-us = <500>;
-				exit-latency-us = <1000>;
-				min-residency-us = <2500>;
-			};
-		};
-	};
-
 	ap806 {
 		#address-cells = <2>;
 		#size-cells = <2>;