arm64: dts: Add FlexRM DT nodes for Stingray

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	fs4: fs4 {

		compatible = "simple-bus";

		#address-cells = <1>;

		#size-cells = <1>;

		ranges = <0x0 0x0 0x67000000 0x00800000>;

		crypto_mbox: crypto_mbox@00000000 {

			compatible = "brcm,iproc-flexrm-mbox";

			reg = <0x00000000 0x200000>;

			msi-parent = <&gic_its 0x4100>;

			#mbox-cells = <3>;

			dma-coherent;

		};

		raid_mbox: raid_mbox@00400000 {

			compatible = "brcm,iproc-flexrm-mbox";

			reg = <0x00400000 0x200000>;

			dma-coherent;

			msi-parent = <&gic_its 0x4300>;

			#mbox-cells = <3>;

		};

	};

		};

	};

	#include "stingray-fs4.dtsi"

	#include "stingray-sata.dtsi"

	hsls {