12 cells in telemetry view for Taranis. Can't test in real life as I can't find my 2nd FLVS, but it's OK on simu.
12 cells logged
12 cells logged only on ARM boards
Cell labels as defines with the rest
Indents
Merge branch 'next' of https://github.com/opentx/opentx into kilrah/158_12_cells_in_telemetry_view

Conflicts:
	radio/src/logs.cpp
	radio/src/telemetry/frsky.h
	radio/src/telemetry/frsky_sport.h
Compilation error
Logging fixed, didn't notice the new macro
Merge pull request #958 from opentx/kilrah/158_12_cells_in_telemetry_view

Kilrah/158 12 cells in telemetry view