LU-8426 rpmbuild: fix build with option "--without lustre_utils"

LU-8426 rpmbuild: fix build with option "--without lustre_utils"

Fix issue with not existing directory when build without lustre_utils

Test-Parameters: trivial

Change-Id: I2db1f4daa619f62e808f352a1a3265267085dc63
Signed-off-by: Dmitry Eremin <dmitry.eremin@intel.com>
Reviewed-on: http://review.whamcloud.com/21228
Tested-by: Jenkins
Tested-by: Maloo <hpdd-maloo@intel.com>
Reviewed-by: Bob Glossman <bob.glossman@intel.com>
Reviewed-by: James Simmons <uja.ornl@yahoo.com>
Reviewed-by: Christopher J. Morrone <morrone2@llnl.gov>
Reviewed-by: Oleg Drokin <oleg.drokin@intel.com>