RTL: Always publish available approaches from home and rally points

[KonradRudin]

Solved Problem

If the takeoff_land_req parameter is set to 5 you can't upload a mission without landing, although approaches are defined in certain situation (e.g. RTL_TYPE=1).

Fixes #{Github issue ID}

Solution

• Make sure that the RTL module always publishes that land approaches are available for home or rally points. As even for RTL_TYPE=1 it would use the home approach if nothing else is defined.

Changelog Entry

For release notes:

Bugfix Make sure that mission landing is not required when home approaches are set in while MIS_TKO_LAND_REQ=5

Test coverage

• Tested in SITL

Context

Related links, screenshot before/after, video