RsaTool: Fix OpenSSL 1.0.x compatibility
RSA_get0_key/RSA_set0_key were introduced with OpenSSL 1.1.0, not 1.0.1.
#include <openssl/pem.h>
#include <openssl/rsa.h>
-#if !defined(HAVE_RSA_GET0_KEY) && defined(OPENSSL_VERSION_NUMBER) && OPENSSL_VERSION_NUMBER >= 0x1000100fL
+#if !defined(HAVE_RSA_GET0_KEY) && defined(OPENSSL_VERSION_NUMBER) && OPENSSL_VERSION_NUMBER >= 0x10100000L
#define HAVE_RSA_GET0_KEY
#define HAVE_RSA_SET0_KEY
#define EVP_MD_CTX_cleanup EVP_MD_CTX_free
