As @LitBomb pointed out in his [comment](https://github.com/meshcore-dev/MeshCore/issues/2118#issuecomment-4108168109) on #2118 RX Boosted Gain should not be enabled for the Station G2.
This change is a fix for #2124 to make the default of `radio.rxgain` to be OFF on the Station G2.
This restores the pre-1.14.1 behaviour with the only change being the user is now able to change the setting in the CLI.
Tested in v1.13.
These commands don't work anymore:
```
get password
-> ??: password
set password secret
-> unknown config: password secret
```
This does work:
```
password secret
-> password now: secret
```
Jeroen VermeulenandGitHub