Fix bug with NV name after first write (only appears when using HMAC session).
Add new API wolfTPM2_UnsetAuthSession to unset auth index for a session and save off the nonce from the TPM. This allows auth to be unset/set again with the same session.
Cleanup in the NV API's for unsetting of the auth to be handled by caller, not in API.
wolfTPM2_UnsetAuthSession
to unset auth index for a session and save off the nonce from the TPM. This allows auth to be unset/set again with the same session.