Refactored the current CLI based implementation of vtx_akk_hack into a new feature named: "LEGACY_SA_SUPPORT"
Re-added the tailing byte in send frame as a possible fix for the "standard" implementation of Smart Audio, due to user reporting that turning the hack off for Unify and other "standard" SA VTX-es will result in an incorrect setting save issue (settings are only saved after unplugging and re-plugging the battery)
Refactored the current CLI based implementation of vtx_akk_hack into a new feature named: "LEGACY_SA_SUPPORT"
Re-added the tailing byte in send frame as a possible fix for the "standard" implementation of Smart Audio, due to user reporting that turning the hack off for Unify and other "standard" SA VTX-es will result in an incorrect setting save issue (settings are only saved after unplugging and re-plugging the battery)
This PR should be accepted with the relevant Butterflight-Configurator PR that adds the "LEGACY_SA_SUPPORT" feature to the configuration tab
Incrementing the MSP protocol minor version to 39 and the EEPROM version is required before release