Adds available profiles and currently selected OSD profile. If the `USE_OSD_PROFILES` feature is not available then the profile count and selected profile will be 1.
Adds OSD stick overlay radio mode. A zero value indicates OSD stick overlay is not available.
Preserve gyro/acc alignment backwards compatibility for configurator versions unaware of the revised sensor alignment scheme.
Update MSP to add support for:
1. Flag to indicate whether `USE_MULTI_GYRO` is available
2. `gyro_to_use`
3. `gyro_1_sensor_align` and `gyro_2_sensor_align`.
Added a flag indicating the level of ledstrip support (to allow improved Configurator behavior) along with support for reading/setting the current `ledstrip_profile`.
ledstrip support flag is as follows:
0 = basic ledstrip available
1 = advanced ledstrip available
