openssl: config engines in /etc/ssl/engines.cnf.d

openssl: config engines in /etc/ssl/engines.cnf.d

This changes the configuration of engines from the global openssl.cnf to
files in the /etc/ssl/engines.cnf.d directory.  The engines.cnf file has
the list of enabled engines, while each engine has its own configuration
file installed under /etc/ssl/engines.cnf.d.

Patches were refreshed with --zero-commit.

Signed-off-by: Eneas U de Queiroz <cotequeiroz@gmail.com>