arm64: dts: st: add DMA support on I2C instances of stm32mp25

Add dmas and dma-names properties in i2c nodes of stm32mp251.dtsi to
enable DMA support.

Signed-off-by: Amelie Delaunay <[e-mail]>
Signed-off-by: Alexandre Torgue <[e-mail]>

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

···
 				resets = <&rcc I2C1_R>;
 				#address-cells = <1>;
 				#size-cells = <0>;
+				dmas = <&hpdma 27 0x20 0x3012>,
+				       <&hpdma 28 0x20 0x3021>;
+				dma-names = "rx", "tx";
 				access-controllers = <&rifsc 41>;
 				status = "disabled";
 			};
···
 				resets = <&rcc I2C2_R>;
 				#address-cells = <1>;
 				#size-cells = <0>;
+				dmas = <&hpdma 30 0x20 0x3012>,
+				       <&hpdma 31 0x20 0x3021>;
+				dma-names = "rx", "tx";
 				access-controllers = <&rifsc 42>;
 				status = "disabled";
 			};
···
 				resets = <&rcc I2C3_R>;
 				#address-cells = <1>;
 				#size-cells = <0>;
+				dmas = <&hpdma 33 0x20 0x3012>,
+				       <&hpdma 34 0x20 0x3021>;
+				dma-names = "rx", "tx";
 				access-controllers = <&rifsc 43>;
 				status = "disabled";
 			};
···
 				resets = <&rcc I2C4_R>;
 				#address-cells = <1>;
 				#size-cells = <0>;
+				dmas = <&hpdma 36 0x20 0x3012>,
+				       <&hpdma 37 0x20 0x3021>;
+				dma-names = "rx", "tx";
 				access-controllers = <&rifsc 44>;
 				status = "disabled";
 			};
···
 				resets = <&rcc I2C5_R>;
 				#address-cells = <1>;
 				#size-cells = <0>;
+				dmas = <&hpdma 39 0x20 0x3012>,
+				       <&hpdma 40 0x20 0x3021>;
+				dma-names = "rx", "tx";
 				access-controllers = <&rifsc 45>;
 				status = "disabled";
 			};
···
 				resets = <&rcc I2C6_R>;
 				#address-cells = <1>;
 				#size-cells = <0>;
+				dmas = <&hpdma 42 0x20 0x3012>,
+				       <&hpdma 43 0x20 0x3021>;
+				dma-names = "rx", "tx";
 				access-controllers = <&rifsc 46>;
 				status = "disabled";
 			};
···
 				resets = <&rcc I2C7_R>;
 				#address-cells = <1>;
 				#size-cells = <0>;
+				dmas = <&hpdma 45 0x20 0x3012>,
+				       <&hpdma 46 0x20 0x3021>;
+				dma-names = "rx", "tx";
 				access-controllers = <&rifsc 47>;
 				status = "disabled";
 			};
···
 				resets = <&rcc I2C8_R>;
 				#address-cells = <1>;
 				#size-cells = <0>;
+				dmas = <&hpdma 168 0x20 0x3012>,
+				       <&hpdma 169 0x20 0x3021>;
+				dma-names = "rx", "tx";
 				access-controllers = <&rifsc 48>;
 				status = "disabled";
 			};