Recent changes add whitespace line at the end of spl.txt files

[psyhtest]

A companion to mlcommons/inference#1581

A workaround is provided with two PRs:

• Ignore trailing whitespace lines in spl.txt files #325
• Ignore trailing whitespace lines in spl.txt files inference#1584

This will work for v4.0 submitters who have already generated some experiments.

Ideally, we should locate the change that altered the file structure, and amend it.

[arjunsuresh]

Thank you @psyhtest This is the location of the issue and we can fix it after the submission deadline so that checksum won't change for 4.0 submissions.

Another action item is to run the checker on any PR to the power-dev repository via Github actions - currently the power workflow is run but not the checker.