test if dhcpcd can use the bpf capability
    
    A recent dhcpcd testing revealed that SELinux denials appear when
    the dhcpcd service (in default configuration) is started on RHEL-9.
    The TC reproduces the situation.
    
    In order to avoid such SELinux denials, I believe that SELinux policy
    should either allow or dontaudit them. The TC looks for appropriate
    policy rules.
    
    The TC covers RHEL-15326.