ARM: dts: stm32: DT sync with kernel v5.10-rc1 for MCU's boards

Device tree alignment with kernel v5.10-rc1.

Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
Reviewed-by: Patrick Delaunay <patrick.delaunay@st.com>
diff --git a/arch/arm/dts/stm32f746.dtsi b/arch/arm/dts/stm32f746.dtsi
index 3f312ab..ba9b3cd 100644
--- a/arch/arm/dts/stm32f746.dtsi
+++ b/arch/arm/dts/stm32f746.dtsi
@@ -264,12 +264,10 @@
 			compatible = "st,stm32-rtc";
 			reg = <0x40002800 0x400>;
 			clocks = <&rcc 1 CLK_RTC>;
-			clock-names = "ck_rtc";
 			assigned-clocks = <&rcc 1 CLK_RTC>;
 			assigned-clock-parents = <&rcc 1 CLK_LSE>;
 			interrupt-parent = <&exti>;
 			interrupts = <17 1>;
-			interrupt-names = "alarm";
 			st,syscfg = <&pwrcfg 0x00 0x100>;
 			status = "disabled";
 		};
@@ -461,8 +459,8 @@
 			status = "disabled";
 		};
 
-		syscfg: system-config@40013800 {
-			compatible = "syscon";
+		syscfg: syscon@40013800 {
+			compatible = "st,stm32-syscfg", "syscon";
 			reg = <0x40013800 0x400>;
 		};
 
@@ -529,7 +527,7 @@
 		};
 
 		pwrcfg: power-config@40007000 {
-			compatible = "syscon";
+			compatible = "st,stm32-power-config", "syscon";
 			reg = <0x40007000 0x400>;
 		};
 
@@ -551,7 +549,7 @@
 			assigned-clock-rates = <1000000>;
 		};
 
-		dma1: dma@40026000 {
+		dma1: dma-controller@40026000 {
 			compatible = "st,stm32-dma";
 			reg = <0x40026000 0x400>;
 			interrupts = <11>,
@@ -567,7 +565,7 @@
 			status = "disabled";
 		};
 
-		dma2: dma@40026400 {
+		dma2: dma-controller@40026400 {
 			compatible = "st,stm32-dma";
 			reg = <0x40026400 0x400>;
 			interrupts = <56>,