Description of problem: clevis slot reports sha256 value even though it has been formatted with sha512

Version-Release number of selected component (if applicable):
clevis-18-110.el9.x86_64

How reproducible:
100% Reproducible

Steps to Reproduce:
1. Format the device with Sha512 as a hash value
2. Try to bind the device with tpm/tang for auto decryption
3. After binding, Check the Hash value in the #luksDump command

Actual results:
It reports the incorrect (or default) hash value

Expected results:
Show the hash value which was used while formatting the device

Additional info: