Fix Heltec Mesh Solar companion build: undef NONE macro from meshsolar logger

[marcelverdult]

Heltec_mesh_solar_companion_radio_ble / _usb currently fail to compile on dev:

.pio/libdeps/.../meshsolar/src/utils/logger.h:18:25: error: expected identifier before numeric constant
   18 | #define NONE            1
src/helpers/MultiSerialInterface.h:11:3: note: in expansion of macro 'NONE'

The meshsolar library's logger.h defines NONE (and other log-level names) as macros, which clashes with InterfaceType::NONE added in e672679. meshsolar only uses these names in #if checks inside its own header, so undefining NONE right after including meshSolarApp.h is safe.

Tested with pio run on dev (1934a49): all five Heltec_mesh_solar_* envs (companion ble/usb, repeater, room server, kiss modem) build. Without the change, _companion_radio_usb fails with the error above.

[Blake-Latchford]

I'm not sure which compiler this project uses, but I think this is why c++ introduced enum classes (also called scooped enums) .
https://en.cppreference.com/cpp/language/enum