ARM: dts: stm32: fix i2c node typo in stm32h743, update dmamux1 register

Replace upper case by lower case in i2c nodes name.
update dmamux1 register range.

Signed-off-by: dillon min <dillon.minfei@gmail.com>
Reviewed-by: Patrice Chotard <patrice.chotard@foss.st.com>
diff --git a/arch/arm/dts/stm32h743.dtsi b/arch/arm/dts/stm32h743.dtsi
index 77a8aef..ed68575 100644
--- a/arch/arm/dts/stm32h743.dtsi
+++ b/arch/arm/dts/stm32h743.dtsi
@@ -139,7 +139,7 @@
 			status = "disabled";
 		};
 
-		i2c3: i2c@40005C00 {
+		i2c3: i2c@40005c00 {
 			compatible = "st,stm32f7-i2c";
 			#address-cells = <1>;
 			#size-cells = <0>;
@@ -254,7 +254,7 @@
 
 		dmamux1: dma-router@40020800 {
 			compatible = "st,stm32h7-dmamux";
-			reg = <0x40020800 0x1c>;
+			reg = <0x40020800 0x40>;
 			#dma-cells = <3>;
 			dma-channels = <16>;
 			dma-requests = <128>;
@@ -386,7 +386,7 @@
 			status = "disabled";
 		};
 
-		i2c4: i2c@58001C00 {
+		i2c4: i2c@58001c00 {
 			compatible = "st,stm32f7-i2c";
 			#address-cells = <1>;
 			#size-cells = <0>;