tests: Fix EAP-FAST protocol testing with older OpenSSL library versions
Looks like the previous fix for a newer OpenSSL versions broke
functionality with older versions that did not seem to like @SECLEVEL=0
in the cipher list. Make that addition conditional on OpenSSL version to
work with both versions.
Fixes: e87e6f609bb1 ("tests: Fix EAP-FAST protocol testing with newer OpenSSL and pyOpenSSL") Signed-off-by: Jouni Malinen <jouni@codeaurora.org>