ARM: dts: exynos: Move syscon poweroff and restart nodes under the PMU

The PMU node is the actual block responsible for power management,
including typical Exynos on/off/restart procedures. Therefore the
syscon poweroff and restart nodes logically belong to it.

Signed-off-by: Krzysztof Kozlowski <[e-mail]>
Tested-by: Marek Szyprowski <[e-mail]>

arch/arm/boot/dts/exynos-syscon-restart.dtsi

···
  * Samsung's Exynos SoC syscon reboot/poweroff nodes common definition.
  */
 
-/ {
-	soc {
-		compatible = "simple-bus";
+&pmu_system_controller {
+	poweroff: syscon-poweroff {
+		compatible = "syscon-poweroff";
+		regmap = <&pmu_system_controller>;
+		offset = <0x330C>; /* PS_HOLD_CONTROL */
+		mask = <0x5200>; /* reset value */
+	};
 
-		poweroff: syscon-poweroff {
-			compatible = "syscon-poweroff";
-			regmap = <&pmu_system_controller>;
-			offset = <0x330C>; /* PS_HOLD_CONTROL */
-			mask = <0x5200>; /* reset value */
-		};
-
-		reboot: syscon-reboot {
-			compatible = "syscon-reboot";
-			regmap = <&pmu_system_controller>;
-			offset = <0x0400>; /* SWRESET */
-			mask = <0x1>;
-		};
+	reboot: syscon-reboot {
+		compatible = "syscon-reboot";
+		regmap = <&pmu_system_controller>;
+		offset = <0x0400>; /* SWRESET */
+		mask = <0x1>;
 	};
 };

arch/arm/boot/dts/exynos3250.dtsi

···
  */
 
 #include "exynos4-cpu-thermal.dtsi"
-#include "exynos-syscon-restart.dtsi"
 #include <dt-bindings/clock/exynos3250.h>
 #include <dt-bindings/interrupt-controller/arm-gic.h>
 #include <dt-bindings/interrupt-controller/irq.h>
···
 };
 
 #include "exynos3250-pinctrl.dtsi"
+#include "exynos-syscon-restart.dtsi"

arch/arm/boot/dts/exynos4.dtsi

···
 #include <dt-bindings/clock/exynos-audss-clk.h>
 #include <dt-bindings/interrupt-controller/arm-gic.h>
 #include <dt-bindings/interrupt-controller/irq.h>
-#include "exynos-syscon-restart.dtsi"
 
 / {
 	interrupt-parent = <&gic>;
···
 		};
 	};
 };
+
+#include "exynos-syscon-restart.dtsi"

arch/arm/boot/dts/exynos5.dtsi

···
 
 #include <dt-bindings/interrupt-controller/arm-gic.h>
 #include <dt-bindings/interrupt-controller/irq.h>
-#include "exynos-syscon-restart.dtsi"
 
 / {
 	interrupt-parent = <&gic>;

arch/arm/boot/dts/exynos5250.dtsi

···
 };
 
 #include "exynos5250-pinctrl.dtsi"
+#include "exynos-syscon-restart.dtsi"

arch/arm/boot/dts/exynos5410.dtsi

···
 };
 
 #include "exynos5410-pinctrl.dtsi"
+#include "exynos-syscon-restart.dtsi"

arch/arm/boot/dts/exynos5420.dtsi

···
 };
 
 #include "exynos5420-pinctrl.dtsi"
+#include "exynos-syscon-restart.dtsi"