Fix OF in-test for end-cap R3
The end-cap R3 powerboards contain two AMACs, HVMuxes, LinPols, etc. They are basically two barrel powerboards. However, the OF of the second AMAC, is steered by the OFOut
of the first AMAC. This MR accounts for that.
Depends on !157 (merged) and !158 (merged)
Tagging @kkrizka
Edited by Ben Bruers