[doc] Add D2/D3 review item for documentation of instantiation parameters

[msfschaffner]

This has come up as part of the OTP_CTRL D3 review #13438.
In particular, we should make sure that the valid / tested configurations are documented in the spec before signing off.
Such a checklist item could be placed into the D2 or D3 checklist (D2 would give DV a better handle on which configurations need to tested).

[msfschaffner]

As discussed on #13860, one possibility would be to add the following checklist item to the D3 checklist:

### DOC_PARAM_IP

If not otherwise stated in the comportable IP specification, all instantiation parameter combinations are considered legal and do not impact D3/V3 status.
If an IP supports only a subset of parameterizations, it must explicitly document the supported parameterizations in a section called "Parameter Changes after D3/V3" in the design specification.

[tjaychen]

@tjaychen