feat(esp32_p4_function_ev_board): add example of wifi connection

[igrr]

This PR adds a simple example of connecting to Wi-Fi on ESP32-P4 EV board.

This example adds esp_wifi_remote as a dependency and sets the required sdkconfig options.

The goal is to allow users to quickly get started with Wi-Fi connectivity on this board by running

idf.py create-project-from-example espressif/esp32_p4_function_ev_board:wifi_connection

[igrr]

@tore-espressif WDYT about adding such an example to bsp/esp32_p4_function_ev_board/examples directory?

[tore-espressif]

If ESP32-P4 + ESP32-C6 hardware setup is planned for all our P4 devkits, I (as a user) would expect this to be in esp-idf examples.

If the ESP32-C6 modem extension is not going to be typical usecase, we can leave the example here

[igrr]

I think we will keep ESP32-C6 on ESP32-P4 EV board, but we can't be sure that makers of other P4 boards will also add ESP32-C6. If they do, still they might opt to use a different set of pins for SDIO.

On IDF side, so far support for P4 is being added only in iperf example. Still, it will take some time to merge this and this will only be available in IDF master branch for some time.

So I thought that making this example easily available via the component manager would be a reasonable solution in the meantime.

[igrr]

@tore-espressif Might need to ask for your help with the pre-commit hook. I'm guessing that the script is considering example README.md file as a BSP readme file... Could you suggest what I can change to make this check succeed?

[tore-espressif]

@igrr Please ignore the pre-commit fail, probably some issue on our side

[tore-espressif]

Might need to ask for your help with the pre-commit hook. I'm guessing that the script is considering example README.md file as a BSP readme file... Could you suggest what I can change to make this check succeed?

We can force merge, if you need it now. I'll take a look on Monday

[igrr]

No, this one is not urgent at all, let's find the proper solution next week. (I have looked at the script for a bit and I think I see how to make it work, just don't have time to do it right now.)

[igrr]

Probably makes sense to pin at least some version of esp_wifi_remote (and maybe esp_hosted?) here.

[espzav]

I agree, do you plan update and set some major version here?

[tore-espressif]

@igrr I rebased your PR, the pre-commit check is passing now

[espzav]

@igrr Thank you for this example, good work! LGTM

[espzav]

I agree, do you plan update and set some major version here?