LU-3703 tests: skip test for getfattr 2.4.44-6 or less

LU-3703 tests: skip test for getfattr 2.4.44-6 or less

Non-SLES distros may also have an older version of getfattr,
so sanity.sh test_234 should also be skipped on those systems.

Signed-off-by: Andreas Dilger <andreas.dilger@intel.com>
Change-Id: I012554dd840715d336d3286cc46c56f53d500c1e
Reviewed-on: http://review.whamcloud.com/10867
Tested-by: Jenkins
Reviewed-by: Nathaniel Clark <nathaniel.l.clark@intel.com>
Reviewed-by: Bob Glossman <bob.glossman@intel.com>
Tested-by: Maloo <hpdd-maloo@intel.com>
Reviewed-by: Oleg Drokin <oleg.drokin@intel.com>