feat: add support for RAK3312 (New RAKwireless wiscore ESP32-S3 + SX1262) (#7115)

* Add support for RAK3112 variant with necessary configurations and definitions

* Add the configuration of the LED pin

* Refactor rak3112 variant configuration: update name, remove unused files,

* Update RAK3112 configuration: refine memory settings,  adjust GPS pin definitions

* Update RAK3112 hardware vendor definition to use correct model

* configure LED pins and update module definitions

* Update USB mode configuration for RAK3112 board

* Update power and battery configuration in rak3112 variant

* Cancel the modification of mesh.pb.h

* Rename RAKwireless RAK3112 to RAK3312

---------

Co-authored-by: daniel <daniel.cao@rakwireless.com>
Co-authored-by: Thomas Göttgens <tgoettgens@gmail.com>
Co-authored-by: Ben Meadors <benmmeadors@gmail.com>

boards/wiscore_rak3312.json

@@ -0,0 +1,41 @@
+{
+  "build": {
+    "arduino": {
+      "ldscript": "esp32s3_out.ld",
+      "memory_type": "qio_opi",
+      "partitions": "default_16MB.csv"
+    },
+    "core": "esp32",
+    "extra_flags": [
+      "-DRAK3312",
+      "-DARDUINO_USB_CDC_ON_BOOT=1",
+      "-DARDUINO_USB_MODE=1",
+      "-DARDUINO_RUNNING_CORE=1",
+      "-DARDUINO_EVENT_RUNNING_CORE=1",
+      "-DBOARD_HAS_PSRAM"
+    ],
+    "f_cpu": "240000000L",
+    "f_flash": "80000000L",
+    "flash_mode": "dio",
+    "hwids": [["0x303A", "0x1001"]],
+    "mcu": "esp32s3",
+    "variant": "rak3312"
+  },
+  "connectivity": ["wifi", "bluetooth"],
+  "debug": {
+    "openocd_target": "esp32s3.cfg"
+  },
+  "frameworks": ["arduino", "espidf"],
+  "name": "WisCore RAK3312 Board",
+  "upload": {
+    "flash_size": "16MB",
+    "maximum_ram_size": 327680,
+    "maximum_size": 16777216,
+    "use_1200bps_touch": true,
+    "wait_for_upload_port": true,
+    "require_upload_port": true,
+    "speed": 921600
+  },
+  "url": "https://www.rakwireless.com/en-us",
+  "vendor": "rakwireless"
+}