ARM: dts: stm32: fix uart nodes ordering in stm32mp15-pinctrl

Fix usart and uart nodes ordering. Several usart nodes didn't respect
expecting ordering.

Fixes: 077e0638 ("ARM: dts: stm32: Add alternate pinmux for USART2 pins on stm32mp15")
Signed-off-by: Erwan Le Ray <erwan.leray@st.com>
Signed-off-by: Alexandre Torgue <alexandre.torgue@st.com>

arch/arm/boot/dts/stm32mp15-pinctrl.dtsi

@@ -1574,67 +1574,6 @@ pins2 {
 		};
 	};
 
-	usart2_pins_a: usart2-0 {
-		pins1 {
-			pinmux = <STM32_PINMUX('F', 5, AF7)>, /* USART2_TX */
-				 <STM32_PINMUX('D', 4, AF7)>; /* USART2_RTS */
-			bias-disable;
-			drive-push-pull;
-			slew-rate = <0>;
-		};
-		pins2 {
-			pinmux = <STM32_PINMUX('D', 6, AF7)>, /* USART2_RX */
-				 <STM32_PINMUX('D', 3, AF7)>; /* USART2_CTS_NSS */
-			bias-disable;
-		};
-	};
-
-	usart2_sleep_pins_a: usart2-sleep-0 {
-		pins {
-			pinmux = <STM32_PINMUX('F', 5, ANALOG)>, /* USART2_TX */
-				 <STM32_PINMUX('D', 4, ANALOG)>, /* USART2_RTS */
-				 <STM32_PINMUX('D', 6, ANALOG)>, /* USART2_RX */
-				 <STM32_PINMUX('D', 3, ANALOG)>; /* USART2_CTS_NSS */
-		};
-	};
-
-	usart2_pins_b: usart2-1 {
-		pins1 {
-			pinmux = <STM32_PINMUX('F', 5, AF7)>, /* USART2_TX */
-				 <STM32_PINMUX('A', 1, AF7)>; /* USART2_RTS */
-			bias-disable;
-			drive-push-pull;
-			slew-rate = <0>;
-		};
-		pins2 {
-			pinmux = <STM32_PINMUX('F', 4, AF7)>, /* USART2_RX */
-				 <STM32_PINMUX('E', 15, AF7)>; /* USART2_CTS_NSS */
-			bias-disable;
-		};
-	};
-
-	usart2_sleep_pins_b: usart2-sleep-1 {
-		pins {
-			pinmux = <STM32_PINMUX('F', 5, ANALOG)>, /* USART2_TX */
-				 <STM32_PINMUX('A', 1, ANALOG)>, /* USART2_RTS */
-				 <STM32_PINMUX('F', 4, ANALOG)>, /* USART2_RX */
-				 <STM32_PINMUX('E', 15, ANALOG)>; /* USART2_CTS_NSS */
-		};
-	};
-
-	usart3_pins_a: usart3-0 {
-		pins1 {
-			pinmux = <STM32_PINMUX('B', 10, AF7)>; /* USART3_TX */
-			bias-disable;
-			drive-push-pull;
-			slew-rate = <0>;
-		};
-		pins2 {
-			pinmux = <STM32_PINMUX('B', 12, AF8)>; /* USART3_RX */
-			bias-disable;
-		};
-	};
-
 	uart4_pins_a: uart4-0 {
 		pins1 {
 			pinmux = <STM32_PINMUX('G', 11, AF6)>; /* UART4_TX */
@@ -1732,6 +1671,67 @@ pins2 {
 		};
 	};
 
+	usart2_pins_a: usart2-0 {
+		pins1 {
+			pinmux = <STM32_PINMUX('F', 5, AF7)>, /* USART2_TX */
+				 <STM32_PINMUX('D', 4, AF7)>; /* USART2_RTS */
+			bias-disable;
+			drive-push-pull;
+			slew-rate = <0>;
+		};
+		pins2 {
+			pinmux = <STM32_PINMUX('D', 6, AF7)>, /* USART2_RX */
+				 <STM32_PINMUX('D', 3, AF7)>; /* USART2_CTS_NSS */
+			bias-disable;
+		};
+	};
+
+	usart2_sleep_pins_a: usart2-sleep-0 {
+		pins {
+			pinmux = <STM32_PINMUX('F', 5, ANALOG)>, /* USART2_TX */
+				 <STM32_PINMUX('D', 4, ANALOG)>, /* USART2_RTS */
+				 <STM32_PINMUX('D', 6, ANALOG)>, /* USART2_RX */
+				 <STM32_PINMUX('D', 3, ANALOG)>; /* USART2_CTS_NSS */
+		};
+	};
+
+	usart2_pins_b: usart2-1 {
+		pins1 {
+			pinmux = <STM32_PINMUX('F', 5, AF7)>, /* USART2_TX */
+				 <STM32_PINMUX('A', 1, AF7)>; /* USART2_RTS */
+			bias-disable;
+			drive-push-pull;
+			slew-rate = <0>;
+		};
+		pins2 {
+			pinmux = <STM32_PINMUX('F', 4, AF7)>, /* USART2_RX */
+				 <STM32_PINMUX('E', 15, AF7)>; /* USART2_CTS_NSS */
+			bias-disable;
+		};
+	};
+
+	usart2_sleep_pins_b: usart2-sleep-1 {
+		pins {
+			pinmux = <STM32_PINMUX('F', 5, ANALOG)>, /* USART2_TX */
+				 <STM32_PINMUX('A', 1, ANALOG)>, /* USART2_RTS */
+				 <STM32_PINMUX('F', 4, ANALOG)>, /* USART2_RX */
+				 <STM32_PINMUX('E', 15, ANALOG)>; /* USART2_CTS_NSS */
+		};
+	};
+
+	usart3_pins_a: usart3-0 {
+		pins1 {
+			pinmux = <STM32_PINMUX('B', 10, AF7)>; /* USART3_TX */
+			bias-disable;
+			drive-push-pull;
+			slew-rate = <0>;
+		};
+		pins2 {
+			pinmux = <STM32_PINMUX('B', 12, AF8)>; /* USART3_RX */
+			bias-disable;
+		};
+	};
+
 	usbotg_hs_pins_a: usbotg-hs-0 {
 		pins {
 			pinmux = <STM32_PINMUX('A', 10, ANALOG)>; /* OTG_ID */