qemuDomainSetNumaParamsLive: Check for NUMA mode more wisely
    
    https://bugzilla.redhat.com/show_bug.cgi?id=1232663
    
    In one of my previous ptaches (bcd9a564) I've tried to fix the problem
    that we blindly assumed strict NUMA mode for guests. This led to
    several problems like us pinning a domain onto a nodeset via libnuma
    among with CGroups. Once the nodeset was changed by user, well, it did
    not result in desired effect. See the original commit for more info.
    But, the commit I wrote had a bug: when NUMA parameters are changed on
    a running domain we require domain to be strictly pinned onto a
    nodeset. Due to a typo a condition was mis-evaluated.
    
    Signed-off-by: Michal Privoznik <mprivozn@redhat.com>