One of the most important advantages against the current used powerDNS 3 series is,
that the next major version will be able use openssl for crytographic operations and not
longer require polarssl/mbedtls for them.
Fixes: #11126
Reference #10947, #11125
Signed-off-by: Stefan Schantl <stefan.schantl@ipfire.org> Signed-off-by: Michael Tremer <michael.tremer@ipfire.org>