deps/libssh2: allow -native builds
deps/libssh2: allow -native builds

cardoe/meta-rust,jmesmon/meta-rust,starlab-io/meta-rust,meta-rust/meta-rust,meta-rust/meta-rust,jmesmon/meta-rust,meta-rust/meta-rust,starlab-io/meta-rust,meta-rust/meta-rust,cardoe/meta-rust,cardoe/meta-rust,jmesmon/meta-rust,jmesmon/meta-rust,cardoe/meta-rust,meta-rust/meta-rust