ARM: dts: stm32: add resets property on all DMA nodes on stm32mp151

resets property is well-managed in DMA drivers. In previous products,
there were no reset lines, that's why they are missing here in dma1, dma2,
dmamux and mdma nodes.
Signed-off-by: Amelie Delaunay <amelie.delaunay@st.com>
Signed-off-by: Alexandre Torgue <alexandre.torgue@st.com>

arch/arm/boot/dts/stm32mp151.dtsi

@@ -959,6 +959,7 @@ dma1: dma-controller@48000000 {
 				     <GIC_SPI 17 IRQ_TYPE_LEVEL_HIGH>,
 				     <GIC_SPI 47 IRQ_TYPE_LEVEL_HIGH>;
 			clocks = <&rcc DMA1>;
+			resets = <&rcc DMA1_R>;
 			#dma-cells = <4>;
 			st,mem2mem;
 			dma-requests = <8>;
@@ -976,6 +977,7 @@ dma2: dma-controller@48001000 {
 				     <GIC_SPI 69 IRQ_TYPE_LEVEL_HIGH>,
 				     <GIC_SPI 70 IRQ_TYPE_LEVEL_HIGH>;
 			clocks = <&rcc DMA2>;
+			resets = <&rcc DMA2_R>;
 			#dma-cells = <4>;
 			st,mem2mem;
 			dma-requests = <8>;
@@ -989,6 +991,7 @@ dmamux1: dma-router@48002000 {
 			dma-masters = <&dma1 &dma2>;
 			dma-channels = <16>;
 			clocks = <&rcc DMAMUX>;
+			resets = <&rcc DMAMUX_R>;
 		};
 
 		adc: adc@48003000 {
@@ -1281,6 +1284,7 @@ mdma1: dma-controller@58000000 {
 			reg = <0x58000000 0x1000>;
 			interrupts = <GIC_SPI 122 IRQ_TYPE_LEVEL_HIGH>;
 			clocks = <&rcc MDMA>;
+			resets = <&rcc MDMA_R>;
 			#dma-cells = <5>;
 			dma-channels = <32>;
 			dma-requests = <48>;