Update logic on corrdiff patch based training

[daviddpruitt]

The existing patch based training check automatically assumes that the patch size is not the full region. If a full domain region that is rectangular is being trained It is incorrectly rejected as being patch based.

Modulus Pull Request

Description

Updates the logic on the patch based size checking to avoid incorrectly rejecting full domain trainings. Fixes issue: https://github.com/NVIDIA/modulus/issues/522

Checklist

• [x] I am familiar with the Contributing Guidelines.
• [x] New or existing tests cover these changes.
• [x] The documentation is up to date with these changes.
• [x] The CHANGELOG.md is up to date with these changes.
• [x] An issue is linked to this pull request.

Dependencies

[daviddpruitt]

/blossom-ci