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Expand bio enrollment support for CTAP2.1 §5.7.7, renaming enrollments.
According to the standard, if an enrollment doesn't exist the operation
will return INVALID_OPTION like enumeration. This CL also switches
from BioEnrollmentHandler's OnceClosure to
OnceCallback<CtapDeviceResponseCode> since the status from enumerating
and renaming must be checked.

Change-Id: I38fc7f063edd28538d8414ff7a4bb6054c779796
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1654882Reviewed-by: Kim Paulhamus <kpaulhamus@chromium.org>
Reviewed-by: Martin Kreichgauer <martinkr@google.com>
Commit-Queue: Matthew Webb <noviv@google.com>
Cr-Commit-Position: refs/heads/master@{#668998}