Add test recipes for internal SM2 tests

Reviewed-by: NRichard Levitte <levitte@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/6386)

test/recipes/03-test_sm2_crypt_internal.t

+#! /usr/bin/env perl
+# Copyright 2017-2018 The OpenSSL Project Authors. All Rights Reserved.
+#
+# Licensed under the OpenSSL license (the "License").  You may not use
+# this file except in compliance with the License.  You can obtain a copy
+# in the file LICENSE in the source distribution or at
+# https://www.openssl.org/source/license.html
+
+use strict;
+use OpenSSL::Test;              # get 'plan'
+use OpenSSL::Test::Simple;
+use OpenSSL::Test::Utils;
+
+setup("test_sm2_crypt_internal_sm2");
+
+plan skip_all => "This test is unsupported in a shared library build on Windows"
+    if $^O eq 'MSWin32' && !disabled("shared");
+
+simple_test("test_sm2_crypt_internal_sm2", "sm2_crypt_internal_test", "sm2");

test/recipes/03-test_sm2_sign_internal.t

+#! /usr/bin/env perl
+# Copyright 2017-2018 The OpenSSL Project Authors. All Rights Reserved.
+#
+# Licensed under the OpenSSL license (the "License").  You may not use
+# this file except in compliance with the License.  You can obtain a copy
+# in the file LICENSE in the source distribution or at
+# https://www.openssl.org/source/license.html
+
+use strict;
+use OpenSSL::Test;              # get 'plan'
+use OpenSSL::Test::Simple;
+use OpenSSL::Test::Utils;
+
+setup("test_sm2_sign_internal");
+
+plan skip_all => "This test is unsupported in a shared library build on Windows"
+    if $^O eq 'MSWin32' && !disabled("shared");
+
+simple_test("test_sm2_sign_internal", "sm2_sign_internal_test", "sm2");