* Add join-config entry for "enforceIdKeyDigest" bool
* Add join-config entry for "idkeydigest"
* Initially filled with TPM value from bootstrapper
* Add config entries for idkeydigest and enforceIdKeyDigest
* Extend azure attestation validator to check idkeydigest,
if configured.
* Update unittests
* Add logger to NewValidator for all CSPs
* Add csp to Updateable type
Co-authored-by: Thomas Tendyck <51411342+thomasten@users.noreply.github.com>
Co-authored-by: Daniel Weiße <dw@edgeless.systems>
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