This package is native only, this patch ensures it can only be built
natively and fix the following problems:
* Add openssl-native rather than openssl to the dependencies.
* Use the $(CC) $(LDFLAGS) and $(CFLAGS) that Yocto provides to avoid a
compilation error.
Signed-off-by: Diaz de Grenu, Jose <Jose.DiazdeGrenu@digi.com>