Figure out if multiple initialization attempts at startup is the expected behaviour

[enjoy-digital]

We need multiple initialization attempts to get the link working correctly. We need to:

• get statistics on number of initialization attempts.

• figure out if this is the case with others cores?

• figure out if re-synchronization requests are expected at startup with ADI devices?

[jordens]

One random idea: Depending on how and when the transcievers (on both sides) start up and begin driving their input/output stages, this might be just an electrical side-effect of the AC coupling.
I.e. if the output/input stages are activated just shortly before the CGS/ILA they would not work. If there was a sufficiently long pause (µs waiting, or as we do it now: "many attempts of CGS/ILA"), it would be fine.
This could be checked/probed by comparing "electrically cold" CGS/ILA with "warm" CGS/ILA.