kernel.spec: enable building of perf with libnuma support
    
    Patch makes perf package dependent on numactl-devel and so enables numa
    subsystem benchmarks for perf bench command.
    
    Can be easily reproduced by calling 'perf bench numa mem -a':
    
    - current output:
    
    'Unknown subsystem:numa'
    
    - built with this patch:
    
    'Running numa/mem benchmark...'
    
    [Edited to apply for all architectures except s390/s390x by Josh Boyer]
    
    Signed-off-by: Petr Holasek <pholasek@redhat.com>