Add support for the NUCLEO-WL55JCx (#544)

Resolved #543

Author: gbThreepwood

boards/nucleo_wl55jc.json

@@ -0,0 +1,38 @@
+{
+  "build": {
+    "core": "stm32",
+    "cpu": "cortex-m4",
+    "extra_flags": "-DSTM32WL55JC1",
+    "f_cpu": "48000000L",
+    "mcu": "stm32wl55jc",
+    "product_line": "STM32WL55xx"
+  },
+  "debug": {
+    "default_tools": [
+      "stlink"
+    ],
+    "jlink_device": "STM32WL55JC",
+    "onboard_tools": [
+      "stlink"
+    ],
+    "openocd_target": "stm32wlx",
+    "svd_path": "STM32WL5x_CM4.svd"
+  },
+  "frameworks": [
+    "zephyr"
+  ],
+  "name": "ST Nucleo WL55JC",
+  "upload": {
+    "maximum_ram_size": 65536,
+    "maximum_size": 262144,
+    "protocol": "stlink",
+    "protocols": [
+      "jlink",
+      "cmsis-dap",
+      "stlink",
+      "mbed"
+    ]
+  },
+  "url": "https://www.st.com/en/evaluation-tools/nucleo-wl55jc.html",
+  "vendor": "ST"
+}