framework: sepolicy.info() returns a generator, not a list
    
    Commit c55edb36ca68 ("framework: Fix AVC.__typeMatch to handle aliases
    properly") was forward ported from stable branch. Unfortunately, stable branch
    is supposed to be used with sepolicy version which generates a list, while
    master branch is used with version generating a generator.
    
    Fixes:
      File "/usr/lib/python3.8/site-packages/setroubleshoot/audit_data.py", line 737, in __typeMatch
        _info = info(TYPE, context.type)[0]
      TypeError: 'generator' object is not subscriptable
    
    Resolves:  https://bugzilla.redhat.com/show_bug.cgi?id=1784564