[Defect]: Variant pattern for PBKDF2 must have {prfFunction} instead of {hashAlgorithm}

[meghsaha-ibm]

Describe the defect

As per the SP800-132, PBKDF2 is the PBKDF using HMAC with any approved hash function as the PRF. Therefore, the variable {prfFunction} must be an element of the variant pattern instead of {hashAlgorithm}.

Additional context

The issue is data-quality / naming defect in the Cryptography Registry and can be fixed without changing schema behavior or introducing new algorithms.