Move more general parts of internal/cryptlib.h to new internal/common.h
Reviewed-by: Paul Dale <pauli@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/15847)
diff --git a/test/testutil.h b/test/testutil.h
index d60f002..52fb17c 100644
--- a/test/testutil.h
+++ b/test/testutil.h
@@ -11,7 +11,7 @@
# define OSSL_TESTUTIL_H
# include <stdarg.h>
-# include "internal/cryptlib.h" /* for HAS_PREFIX */
+# include "internal/common.h" /* for HAS_PREFIX */
# include <openssl/provider.h>
# include <openssl/err.h>
