boards: arm: nucleo_wl55jc: add flash partitions

Add flash partitions required to use the board with MCUboot.

Also fix the chosen zephyr,code-partition devicetree node and point it
to slot0_partition.

Signed-off-by: Martin Jäger <[email protected]>

Author: martinjaeger

boards/arm/nucleo_wl55jc/nucleo_wl55jc.dts

@@ -20,7 +20,7 @@
 		zephyr,shell-uart = &lpuart1;
 		zephyr,sram = &sram0;
 		zephyr,flash = &flash0;
-		zephyr,code-partition = &flash0;
+		zephyr,code-partition = &slot0_partition;
 	};
 
 	leds: leds {
@@ -191,6 +191,20 @@ stm32_lp_tick_source: &lptim1 {
 		#address-cells = <1>;
 		#size-cells = <1>;
 
+		boot_partition: partition@0 {
+			label = "mcuboot";
+			reg = <0x00000000 DT_SIZE_K(32)>;
+			read-only;
+		};
+		slot0_partition: partition@8000 {
+			label = "image-0";
+			reg = <0x00008000 DT_SIZE_K(104)>;
+		};
+		slot1_partition: partition@22000 {
+			label = "image-1";
+			reg = <0x00022000 DT_SIZE_K(104)>;
+		};
+
 		/*
 		 * Set 16kB of storage (8x2kB pages) at the end of the 256kB of
 		 * flash.