LU-1199 obdclass: build and install llog_test.ko properly

LU-1199 obdclass: build and install llog_test.ko properly

There's a hack in lustre.spec.in to copy the llog_test.ko module into
/lib/modules.

It's only needed because that module is built unconditionally and
is expected to only be installed if --enable-tests is configured.

The right way to do this is to only build it at all if --enable-tests
is configured and installation comes automatically,

The conditional in the spec file for --enable-tests already exists,
so it will be packaged correctly without the hack.

Signed-off-by: Jeff Mahoney <jeffm@suse.com>
Signed-off-by: James Simmons <uja.ornl@gmail.com>
Change-Id: I2705848e11a96ab6769ebba4481d2d0621f53d3e
Reviewed-on: http://review.whamcloud.com/5493
Tested-by: Hudson
Reviewed-by: Bob Glossman <bob.glossman@intel.com>
Tested-by: Maloo <whamcloud.maloo@gmail.com>
Reviewed-by: Dmitry Eremin <dmitry.eremin@intel.com>
Reviewed-by: Christopher J. Morrone <chris.morrone.llnl@gmail.com>
Reviewed-by: Stephen Champion <schamp@sgi.com>
Reviewed-by: Oleg Drokin <oleg.drokin@intel.com>