boards: st: fix STM32WB boards DTS files coding style

Fix board DTS coding style issues to prevent they spread when a	new
board is introduced and used this DTS as example start point.

Issues addressed from Zephyr devicetree style guidelines [1]:
- Don’t insert empty lines before a dedenting };.
- Insert a single empty line to separate nodes at the same hierarchy level.

No functional change.

Link: https://docs.zephyrproject.org/latest/contribute/style/devicetree.html [1]
Signed-off-by: Etienne Carriere <etienne.carriere@st.com>

Author: etienne-lms

boards/st/nucleo_wb55rg/nucleo_wb55rg.dts

@@ -26,14 +26,17 @@
 
 	leds: leds {
 		compatible = "gpio-leds";
+
 		blue_led_1: led_0 {
 			gpios = <&gpiob 5 GPIO_ACTIVE_HIGH>;
 			label = "User LED1";
 		};
+
 		green_led_2: led_1 {
 			gpios = <&gpiob 0 GPIO_ACTIVE_HIGH>;
 			label = "User LED2";
 		};
+
 		red_led_3: led_2 {
 			gpios = <&gpiob 1 GPIO_ACTIVE_HIGH>;
 			label = "User LED3";
@@ -42,16 +45,19 @@
 
 	gpio_keys {
 		compatible = "gpio-keys";
+
 		user_button_1: button_0 {
 			label = "SW1";
 			gpios = <&gpioc 4 (GPIO_ACTIVE_LOW | GPIO_PULL_UP)>;
 			zephyr,code = <INPUT_KEY_0>;
 		};
+
 		user_button_2: button_1 {
 			label = "SW2";
 			gpios = <&gpiod 0 (GPIO_ACTIVE_LOW | GPIO_PULL_UP)>;
 			zephyr,code = <INPUT_KEY_1>;
 		};
+
 		user_button_3: button_2 {
 			label = "SW3";
 			gpios = <&gpiod 1 (GPIO_ACTIVE_LOW | GPIO_PULL_UP)>;
@@ -162,6 +168,7 @@
 
 &timers2 {
 	status = "okay";
+
 	pwm2: pwm {
 		status = "okay";
 		pinctrl-0 = <&tim2_ch1_pa15>;
@@ -227,23 +234,26 @@ zephyr_udc0: &usb {
 			label = "mcuboot";
 			reg = <0x00000000 DT_SIZE_K(48)>;
 		};
+
 		slot0_partition: partition@c000 {
 			label = "image-0";
 			reg = <0x0000c000 DT_SIZE_K(400)>;
 		};
+
 		slot1_partition: partition@70000 {
 			label = "image-1";
 			reg = <0x00070000 DT_SIZE_K(400)>;
 		};
+
 		scratch_partition: partition@d4000 {
 			label = "image-scratch";
 			reg = <0x000d4000 DT_SIZE_K(16)>;
 		};
+
 		storage_partition: partition@d8000 {
 			label = "storage";
 			reg = <0x000d8000 DT_SIZE_K(8)>;
 		};
-
 	};
 };
 

boards/st/stm32wb5mm_dk/stm32wb5mm_dk.dts

@@ -37,11 +37,13 @@
 
 	buttons {
 		compatible = "gpio-keys";
+
 		button0: button_0 {
 			gpios = <&gpioc 12 (GPIO_PULL_UP | GPIO_ACTIVE_LOW)>;
 			label = "Push button 1";
 			zephyr,code = <INPUT_KEY_0>;
 		};
+
 		button1: button_1 {
 			gpios = <&gpioc 13 (GPIO_PULL_UP | GPIO_ACTIVE_LOW)>;
 			label = "Push button 2";
@@ -147,23 +149,26 @@ zephyr_udc0: &usb {
 			label = "mcuboot";
 			reg = <0x00000000 DT_SIZE_K(48)>;
 		};
+
 		slot0_partition: partition@c000 {
 			label = "image-0";
 			reg = <0x0000c000 DT_SIZE_K(400)>;
 		};
+
 		slot1_partition: partition@70000 {
 			label = "image-1";
 			reg = <0x00070000 DT_SIZE_K(400)>;
 		};
+
 		scratch_partition: partition@d4000 {
 			label = "image-scratch";
 			reg = <0x000d4000 DT_SIZE_K(16)>;
 		};
+
 		storage_partition: partition@d8000 {
 			label = "storage";
 			reg = <0x000d8000 DT_SIZE_K(8)>;
 		};
-
 	};
 };
 

boards/st/stm32wb5mmg/stm32wb5mmg.dts

@@ -97,10 +97,10 @@ zephyr_udc0: &usb {
 			label = "mcuboot";
 			reg = <0x00000000 DT_SIZE_K(48)>;
 		};
+
 		slot0_partition: partition@c000 {
 			label = "image-0";
 			reg = <0x0000c000 DT_SIZE_K(400)>;
 		};
-
 	};
 };