openssl: tests: evp_test succeeds after "SM2 tests" report a fake error

Noticed while testing 2c826cbe2c35237fafb78af8d5ef0e7b1542c334, which is part of #6854.

To reproduce the problem, checkout and build 2c826cbe2c35237fafb78af8d5ef0e7b1542c334, then run

 ./util/shlib_wrap.sh test/evp_test test/recipes/30-test_evp_data/evppkey.txt

The tail of the test output is:

    ...
    # Starting "SM2 tests" tests at line 18402
    # ERROR: (memory) 'expected->output == got' failed @ test/evp_test.c:1111
    # --- expected->output
    # +++ got
    # 0000:-3045022100f11bf3 6e75bb304f094fb4 2a4ca22377d0cc76 8637c5011cd59fb9
    # 0000:+3045022061fa912d d72fff1aebf4857a 77189bdf25c2ae63 fe6d530e7878d89d
    #             ^^^^^^^^^^ ^^^^^^^^^^^^^^^^ ^^^^^^^^^^^^^^^^ ^^^^^^^^^^^^^^^^
    # 0020:-ed4b130c98022035 545ffe2c2efb3abe e4fee661468946d8 86004fae8ea53115
    # 0020:+570505b602210099 be0398f934a02cc6 d47cf774e44294ad b35c6741ad81693c
    #       ^^^^^^^^^^^^^^^^ ^^^^^^^^^^^^^^^^ ^^^^^^^^^^^^^^^^ ^^^^^^^^^^^^^^^^
    # 0040:-93e48f7fe21b91
    # 0040:+a14caef35d5af2
    #       ^^^^^^^^^^^^^^
    #
    # INFO:  @ test/testutil/stanza.c:121
    # Starting "Chosen Wycheproof vectors" tests at line 18440
    # INFO:  @ test/testutil/stanza.c:33
    # Completed 1442 tests with 0 errors and 0 skipped
    ok 1 - test/recipes/30-test_evp_data/evppkey.txt
ok 1 - run_file_tests