Make CMakeLists.txt work better with static OpenSSL libraries

The static OpenSSL libraries have some dependencies that need to be
recorded fofr everything that's linked against it.  To achieve this,
we use ${OPENSSL_CRYPTO_LIBRARIES} and ${OPENSSL_SSL_LIBRARIES}
instead of ${OPENSSL_CRYPTO_LIBRARY} and ${OPENSSL_SSL_LIBRARY}.

(cherry picked from commit 3df64777)

# Conflicts:
#	CMakeLists.txt