build: fix libcrypto renaming
Renaming libcrypto breaks the rebuid on !563 (closed). Repro:
cargo build -vv
rm -rf target/debug/picodata-*
cargo build -vv
It results in
[build.rs:204] running ["cmake" "--build" "target/debug/build/tarantool-sys/tarantool-prefix/src/tarantool-build"]
gmake[2]: *** No rule to make target 'target/debug/build/tarantool-sys/openssl-prefix/lib/libcrypto.a', needed by 'src/tarantool'. Stop.
Instead of renaming this patch makes a symlink.
Edited by Yaroslav Dynnikov