xm-0.2

Fix XM+ diversity. (Only tested on the bench)
Remove v8fr target, as I don't have a working unit anymore.

XM

WARNING: As it turns out I made a huge mistake and there is no diversity. Instead I turn the buffer for SBUS on and off. Somehow it worked without a problem on 4 XM+.
Removed for now until I can test my fix.

XM should be fine.