KConfig Support for Updates via KIAUH

[smbenson0712]

Is your feature request related to a problem? Please describe

No problem, just a convenience for multiple mcu's with different menuconfig settings.

Describe the solution you'd like

As many printers now are using multiple mcu's, it would be very nice to utilize KConfig via KIAUH. This would make updating easier when you have to compile 2-3 mcu firmwares with different menuconfig settings.

Describe alternatives you've considered

I usually update all the software with KIAUH and then use the command line to compile and flash the firmware of my mcu's using KConfig manually.

Additional information

No response