add rc_type_crsf

[benjinne]

Based on recommendation to add for CRSF binding
PX4/PX4-Autopilot#23294 (comment)

[hamishwillee]

Thanks @benjinne .

I created a simpler version in #2163 before I saw this.

I think your version here might be better. Will discuss in mav call.

[hamishwillee]

Thanks @benjinne As per #2163 (comment) I think this is a good change in that it reflects the way that flight stacks are using the message currently - we can't break that.

@julianoes FYI, I'm going to merge. For all the same radio types as previously the same command params would be set for the same radio. @benjinne Also has a QGC implementation, so if there are issues, that will catch them.