Bootkube recover process (and `talosctl recover`) was actually
regenerating assets each time `recover` runs forcing control plane to be
at the state when cluster got created. This PR fixes that by running
recover process correctly.
Recovery via etcd was fixed to handle encrypted etcd data:
it follows the way `apiserver` handles encryption at rest, and as at
the moment AES CBC is the only supported encryption method, code simply
follows the same path.
Signed-off-by: Andrey Smirnov <smirnov.andrey@gmail.com>
