Clarify that RCP interpolation can be between any two RCPs (one higher, one lower)

[petermattson]

No description provided.

[nv-rborkar]

We also have some RCPs which break the non-decreasing requirement with respect to increasing batch-size.
This is possible if better hparams were not known at the time these RCPs were generated.

WG can discuss two approaches to discuss this:
(A) Delete the RCP points which break non-decreasing trendline
or
(B) RCP-checker should interpolate between neighboring or any two RCPs if a direct check at the RCP-batch size fails.

cc: @emizan76

[emizan76]

I vote for (A). Last time we did not do that and there was confusion with submission-time RCPs practically overwriting the original ones. We should have convincing curves for all RCPs w.r.to batch size.