The register map for the new muxed readouts (v3/v4) was not being computed correctly, those ROs would give weird results.
The RO register calculation would always try to compute a phase register value, even for readouts without phase registers (so, muxed readout v2), those ROs could not be used in a program.
Also some more cleanup of the RO configuration code, hopefully that's it.
Fix two bugs in #258:
Also some more cleanup of the RO configuration code, hopefully that's it.