LU-8383 build: Spec file cleanup after LU-5614

LU-8383 build: Spec file cleanup after LU-5614

Add dependency from kmod-%{lustre_name}-tests
Fix BuildRequires: %kernel_module_package_buildreqs

Test-Parameters: trivial

Change-Id: I92325687812f10fb308971391e67bb80c08ae5da
Signed-off-by: Dmitry Eremin <dmitry.eremin@intel.com>
Reviewed-on: http://review.whamcloud.com/21208
Tested-by: Jenkins
Tested-by: Maloo <hpdd-maloo@intel.com>
Reviewed-by: Christopher J. Morrone <morrone2@llnl.gov>
Reviewed-by: Bob Glossman <bob.glossman@intel.com>
Reviewed-by: Oleg Drokin <oleg.drokin@intel.com>