There is a list of allowed rng algorithms, if /one/ of them is not
supported this is not a problem, only /all/ of them failing is an
error condition.
Downgrade the message for a single unsupported algorithm from ERROR to
VERBOSE. Add an error message in case we finish the loop without
finding a supported algorithm.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
6862b9d538