arm64: dts: st: add RIFSC as an access controller for STM32MP25x boards

RIFSC is a firewall controller. Add "st,stm32mp25-rifsc" compatible and
reference RIFSC as an access-control-provider. Keep "simple-bus"
compatible backward compatibility.
Signed-off-by: Gatien Chevallier <gatien.chevallier@foss.st.com>
Signed-off-by: Alexandre Torgue <alexandre.torgue@foss.st.com>

arch/arm64/boot/dts/st/stm32mp251.dtsi

@@ -123,11 +123,12 @@ soc@0 {
 		interrupt-parent = <&intc>;
 		ranges = <0x0 0x0 0x0 0x80000000>;
 
-		rifsc: rifsc-bus@42080000 {
-			compatible = "simple-bus";
+		rifsc: bus@42080000 {
+			compatible = "st,stm32mp25-rifsc", "simple-bus";
 			reg = <0x42080000 0x1000>;
 			#address-cells = <1>;
 			#size-cells = <1>;
+			#access-controller-cells = <1>;
 			ranges;
 
 			usart2: serial@400e0000 {
@@ -135,6 +136,7 @@ usart2: serial@400e0000 {
 				reg = <0x400e0000 0x400>;
 				interrupts = <GIC_SPI 115 IRQ_TYPE_LEVEL_HIGH>;
 				clocks = <&ck_flexgen_08>;
+				access-controllers = <&rifsc 32>;
 				status = "disabled";
 			};
 
@@ -148,6 +150,7 @@ sdmmc1: mmc@48220000 {
 				cap-sd-highspeed;
 				cap-mmc-highspeed;
 				max-frequency = <120000000>;
+				access-controllers = <&rifsc 76>;
 				status = "disabled";
 			};
 		};

arch/arm64/boot/dts/st/stm32mp255.dtsi

@@ -5,22 +5,21 @@
  */
 #include "stm32mp253.dtsi"
 
-/ {
-	soc@0 {
-		rifsc: rifsc-bus@42080000 {
-			vdec: vdec@480d0000 {
-				compatible = "st,stm32mp25-vdec";
-				reg = <0x480d0000 0x3c8>;
-				interrupts = <GIC_SPI 117 IRQ_TYPE_LEVEL_HIGH>;
-				clocks = <&ck_icn_p_vdec>;
-			};
+&rifsc {
+	vdec: vdec@480d0000 {
+		compatible = "st,stm32mp25-vdec";
+		reg = <0x480d0000 0x3c8>;
+		interrupts = <GIC_SPI 117 IRQ_TYPE_LEVEL_HIGH>;
+		clocks = <&ck_icn_p_vdec>;
+		access-controllers = <&rifsc 89>;
 
-			venc: venc@480e0000 {
-				compatible = "st,stm32mp25-venc";
-				reg = <0x480e0000 0x800>;
-				interrupts = <GIC_SPI 167 IRQ_TYPE_LEVEL_HIGH>;
-				clocks = <&ck_icn_ls_mcu>;
-			};
-		};
 	};
-};
+
+	venc: venc@480e0000 {
+		compatible = "st,stm32mp25-venc";
+		reg = <0x480e0000 0x800>;
+		interrupts = <GIC_SPI 167 IRQ_TYPE_LEVEL_HIGH>;
+		clocks = <&ck_icn_ls_mcu>;
+		access-controllers = <&rifsc 90>;
+	};
+};
\ No newline at end of file