libcrypto: add missing symbols to the legacy provider

OpenSSL 3 supports a modular architecture, allowing different providers
to bring specific implementations of cryptographical algorithms. One
such provider, "legacy", ships with OpenSSL 3 directly, and groups
obsoleted algorithms that can still optionally be used anyway.

The import of OpenSSL 3.0.9 was building this provider incorrectly,
missing symbols required for proper operation.

Sponsored by: The FreeBSD Foundation
Pull Request: https://github.com/freebsd/freebsd-src/pull/787