Correctly handle dh key generation when using libressl
Correctly handle dh key generation when using libressl

Motivation:

Commit f070b9167ac6e2dced746193838000dd6e99a122 changed an ifdef when using libressl to enable generation of temporary dh keys. Unfortunally I missed to also update another ifdef and so SSL.initialize() fails when using libressl now.

Modifications:

Update other ifdef as well.

Result:

netty-tcnative is usable again with libressl.

netty/netty-tcnative,netty/netty-tcnative,netty/netty-tcnative,netty/netty-tcnative