ftests: Add a test to validate cgclassify's systemd options (cgroup v1)

ftests: Add a test to validate cgclassify's systemd options (cgroup v1)

Add a test case to validate cgclassify tool's systemd options on cgroup
legacy/hybrid setup modes.

-----------------------------------------------------------------
Test Results:
        Run Date:                          Feb 05 06:51:38
        Passed:                                  1 test(s)
        Skipped:                                 0 test(s)
        Failed:                                  0 test(s)
-----------------------------------------------------------------
Timing Results:
        Test                                  Time (sec)
        ------------------------------------------------
        setup                                       0.00
        065-sudo-systemd_cgclassify-v1.py           7.38
        teardown                                    0.00
        ------------------------------------------------
        Total Run Time                              7.38

Signed-off-by: Kamalesh Babulal <kamalesh.babulal@oracle.com>
Signed-off-by: Tom Hromatka <tom.hromatka@oracle.com>