Autotest: make RTL and Land wait a little more verbose, don't use raw reboot on fly_battery_failsafe

[khancyr]

also correct flip test that wasn't resetting the attitude correctly

[khancyr]

@peterbarker some fixs for the autotest. Could have a look at them. nothing worring.
I am thinking to change the wait_land to something more robust (checking hit ground message and LANDED_STATE) as currently we are only guessing what the land altitude will be....

[khancyr]

comments addressed and ready to go

[peterbarker]

There are several good changes in here.

It's a bit of a pity they're all mixed in as it means I'm reviewing perfectly good changes multiple times, and they're being held up for other stuff :-)

One thing you may not have been aware of - we've had CI failures because of too much log output. Something to bare in mind.

[peterbarker]

Any reason not to use a context here rather than assuming this list of parameters?

[khancyr]

It was done like that so I did it the same way.
I can use the context

[khancyr]

I have split the PR into multiple to not hold the ready ones

[peterbarker]

I've tweaked the commit messages.

[peterbarker]

Looks like the check for altitude needs to accept that the vehicle might start off on the ground.

Stale

[peterbarker]

There still appears to be a new failure in the heli test in this PR.

[peterbarker]

I've rebased this and taken out the expectation of the statustext. That can reappear later if you can get the heli test passing.

[peterbarker]

Merged, thanks!