ARM: dts: BCM5301X: Relicense Felix's code to the GPL 2.0+ / MIT

Move code added by Felix to the bcm-ns.dtsi which uses dual licensing.
That syncs more Northstar code to be based on the same licensing schema.

This code was added in the commit 1ff8036 ("ARM: BCM5301X: Add
profiling support").

Cc: Felix Fietkau <nbd@nbd.name>
Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
Acked-by: Felix Fietkau <nbd@nbd.name>
Link: https://lore.kernel.org/r/20230916083057.10458-1-zajec5@gmail.com
Signed-off-by: Florian Fainelli <florian.fainelli@broadcom.com>

arch/arm/boot/dts/broadcom/bcm-ns.dtsi

@@ -14,6 +14,13 @@
 	#address-cells = <1>;
 	#size-cells = <1>;
 
+	pmu {
+		compatible = "arm,cortex-a9-pmu";
+		interrupts =
+			<GIC_SPI 8 IRQ_TYPE_LEVEL_HIGH>,
+			<GIC_SPI 9 IRQ_TYPE_LEVEL_HIGH>;
+	};
+
 	chipcommon-a-bus@18000000 {
 		compatible = "simple-bus";
 		ranges = <0x00000000 0x18000000 0x00001000>;

arch/arm/boot/dts/broadcom/bcm5301x.dtsi

@@ -26,13 +26,6 @@
 		};
 	};
 
-	pmu {
-		compatible = "arm,cortex-a9-pmu";
-		interrupts =
-			<GIC_SPI 8 IRQ_TYPE_LEVEL_HIGH>,
-			<GIC_SPI 9 IRQ_TYPE_LEVEL_HIGH>;
-	};
-
 	clocks {
 		#address-cells = <1>;
 		#size-cells = <1>;