Fix invalid FMF syntax
    
    Fixes:
    Invalid yaml syntax: Failed to parse '/home/omosnace/Dokumenty/Fedora/tests/selinux/kernel/genfs_fallback/main.fmf'.
    Duplicate key 'adjust' detected.
    
    Signed-off-by: Ondrej Mosnacek <omosnace@redhat.com>