Fix openssl libcrypto issue in systemd package in cassini

Cassini-growfs feature adds repart and that brings openssl to systemd as a dependency.

Currently, openssl libcrypto.so throws a warning with new GCC15 Guarded Control Stack (GCS) where all the binaries loaded/linked should enable this option and openssl libcrypto.so is not built with that option.

And systemd enables fatal warnings in the makefiles so this causes builds to fail now.

We can create a patch to remove fatal-warnings in systemd makefile until this is fixed in upstream openssl or poky.