Support CRSF_FRAMETYPE_SUBSET_RC_CHANNELS_PACKED

[wimalopaan]

Is there an existing issue for this feature request?

• I have searched the existing issues

Is your feature request related to a problem?

Sometimes 16 channels is a limiting factor.

Describe the solution you'd like

CRSF protocol definition supports up to 32 channels via https://github.com/crsf-wg/crsf/wiki/CRSF_FRAMETYPE_SUBSET_RC_CHANNELS_PACKED packets

I would like to see in EdgeTx (and as well as in EexpressLRS: ExpressLRS/ExpressLRS#2938) the possibility to transport up to 32 channels over one rc-link (module)

Describe alternatives you've considered

Alternatively one could use 2 tx-modules in the handset if it supports that (and 2 rx in the model, one without telemetry)

Additional context

No response