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/stm32746g-eval-u-boot.dtsi b/arch/arm/dts/stm32746g-eval-u-boot.dtsi
index d5fb927..f2195a6 100644
--- a/arch/arm/dts/stm32746g-eval-u-boot.dtsi
+++ b/arch/arm/dts/stm32746g-eval-u-boot.dtsi
@@ -165,7 +165,7 @@
 		};
 	};
 
-	usart1_pins_a: usart1@0	{
+	usart1_pins_a: usart1-0	{
 		u-boot,dm-pre-reloc;
 		pins1 {
 			u-boot,dm-pre-reloc;
@@ -178,7 +178,7 @@
 
 &qspi {
 	reg = <0xA0001000 0x1000>, <0x90000000 0x4000000>;
-	qflash0: n25q512a {
+	qflash0: n25q512a@0 {
 		#address-cells = <1>;
 		#size-cells = <1>;
 		compatible = "jedec,spi-nor";