Updated the Wing Wing params based on latest flight tests.

@thomasgubler I just noticed that MT_THR_OFF is way too low if it is meant to be cruise throttle. I assume this param replaces FW_THR_CRUISE (and should therefore have the same or a similar value).

On the next flight I will verify the FW_RR_I and FW_PR_I settings which may be a touch too high. A review and re-testing of the mixer values may also effect these.