[sle][security][sle12sp5] FIPS: Unified test suite settings for both s390x and x86_64
Currently, we use different set of test suites for s390x and x86_64 in FIPS testing. eg.
fips_env_tests_crypt_web_s390x. This method has the downside of impossible to show the results in same line in job group view, and make it complicate to maintain.
Through investigation, there is not so much different between the variables for different platforms. The proposal is to merge the test suites together for easier and more clear maintenance.
For the different variables between architectures, we could set them through the code in
lib/main_common.pm or test cases.