Support for chip from espressif family with Zephyr

Is it possible to use this module on an ESP chip (I'm trying to use it on ESP32)?
I'm able to build 'micro_ros_zephyr_module' using 'west build -b disco_l475_iot1' but I'm having errors caused by 'app.overlay' content when building with 'west build -p auto -b esp32_devkitc_wroom':

```
-- west build: generating a build systemwroom
Loading Zephyr default modules (Zephyr base).
-- Application: /home/ognjen/zephyrproject/applications/micRobbit-firmware/app/modules/micro_ros_zephyr_module
-- CMake version: 3.22.1
-- Found Python3: /usr/bin/python3 (found suitable version "3.10.12", minimum required is "3.8") found components: Interpreter
-- Cache files will be written to: /home/ognjen/.cache/zephyr
-- Zephyr version: 3.5.99 (/home/ognjen/zephyrproject/zephyr)
-- Found west (found suitable version "1.2.0", minimum required is "0.14.0")
-- Board: esp32_devkitc_wroom
-- ZEPHYR_TOOLCHAIN_VARIANT not set, trying to locate Zephyr SDK
-- Found host-tools: zephyr 0.16.3 (/opt/zephyr-sdk-0.16.3)
-- Found toolchain: zephyr 0.16.3 (/opt/zephyr-sdk-0.16.3)
-- Found Dtc: /opt/zephyr-sdk-0.16.3/sysroots/x86_64-pokysdk-linux/usr/bin/dtc (found suitable version "1.6.0", minimum required is "1.4.6")
-- Found BOARD.dts: /home/ognjen/zephyrproject/zephyr/boards/xtensa/esp32_devkitc_wroom/esp32_devkitc_wroom.dts
-- Found devicetree overlay: /home/ognjen/zephyrproject/applications/micRobbit-firmware/app/modules/micro_ros_zephyr_module/app.overlay
devicetree error: /home/ognjen/zephyrproject/applications/micRobbit-firmware/app/modules/micro_ros_zephyr_module/app.overlay:2 (column 14): parse error: undefined node label 'usbotg_fs'
-- In: /home/ognjen/zephyrproject/applications/micRobbit-firmware/app/modules/micro_ros_zephyr_module/build/zephyr, command: /usr/bin/python3;/home/ognjen/zephyrproject/zephyr/scripts/dts/gen_defines.py;--dts;/home/ognjen/zephyrproject/applications/micRobbit-firmware/app/modules/micro_ros_zephyr_module/build/zephyr/zephyr.dts.pre;--dtc-flags;'';--bindings-dirs;/home/ognjen/zephyrproject/zephyr/dts/bindings;--header-out;/home/ognjen/zephyrproject/applications/micRobbit-firmware/app/modules/micro_ros_zephyr_module/build/zephyr/include/generated/devicetree_generated.h.new;--dts-out;/home/ognjen/zephyrproject/applications/micRobbit-firmware/app/modules/micro_ros_zephyr_module/build/zephyr/zephyr.dts.new;--edt-pickle-out;/home/ognjen/zephyrproject/applications/micRobbit-firmware/app/modules/micro_ros_zephyr_module/build/zephyr/edt.pickle;--vendor-prefixes;/home/ognjen/zephyrproject/zephyr/dts/bindings/vendor-prefixes.txt
CMake Error at /home/ognjen/zephyrproject/zephyr/cmake/modules/dts.cmake:268 (message):
gen_defines.py failed with return code: 1
Call Stack (most recent call first):
/home/ognjen/zephyrproject/zephyr/cmake/modules/zephyr_default.cmake:129 (include)
/home/ognjen/zephyrproject/zephyr/share/zephyr-package/cmake/ZephyrConfig.cmake:66 (include)
/home/ognjen/zephyrproject/zephyr/share/zephyr-package/cmake/ZephyrConfig.cmake:92 (include_boilerplate)
CMakeLists.txt:7 (find_package)

-- Configuring incomplete, errors occurred!
FATAL ERROR: command exited with status 1: /usr/bin/cmake -DWEST_PYTHON=/usr/bin/python3 -B/home/ognjen/zephyrproject/applications/micRobbit-firmware/app/modules/micro_ros_zephyr_module/build -GNinja -DBOARD=esp32_devkitc_wroom -S/home/ognjen/zephyrproject/applications/micRobbit-firmware/app/modules/micro_ros_zephyr_module
```

I found in this issue statement that this module should be usable on any board supported by Zephyr.

https://github.com/micro-ROS/micro_ros_zephyr_module/issues/60#issuecomment-1141161320

Thanks in advance.

app.overlay と esp32_devkitc_wroom 用の west build コマンドから始めます。報告された失敗は、devicetree の生成中に usbotg_fs ノードラベルが未定義になることです。これを disco_l475_iot1 のビルドと比較し、ESP サポートに必要なボード固有の変更を特定します。ESP32 ボード用にモジュールが devicetree エラーなしで正常にビルドできれば完了です。

索引モデルが issue の本文から書いたものです。