[WIP] defconfigs update

This is a WIP for getting response from the developer on these commits.

This PR will:
* Update defconfigs my devices: gbox v2.2, mygica a11.
* Add defconfig for latest gbox model with rtl8188eu (dubbed v2.3).
* Rename the gbox defconfigs for more obvious naming,

Benefits:
* Solves bug that prevent connecting via json-rpc when wan is down.
* More like TLBB defconfig so will be easier to update.
* Works with Corey's Buildroot (with a missing patch to wpa_supplicant, see https://github.com/CoreTech-Development/buildroot-mx_linux/pull/4 ) for both Frodo and Gotham, after this merged I will send PR to his Buildroot repository to add the devices.

Issues and what is missing
* Disabling the extra wifi modules may have cause wireless act a bit funny. (need to investigate).
* Didn't looked at the mygica a11 yet.
* If acceptable I can update the v2.0 config but can't test the ethernet of course.
* This needs to be squashed a bit (while I prefer leaving the wifi disabling commit seperate).
* Boards files (arch/arm/mach-meson3) for gbox may need to be renamed also, and the Kconfig value seems wrong (though these aren't used afaik).