LU-17096 debian: add obd_test.ko, llog_test.ko to lustre-tests

LU-17096 debian: add obd_test.ko, llog_test.ko to lustre-tests

The obd_test.ko module was missing from the lustre-tests
Debian package. Hence, it wasn't being installed on the
Ubuntu clients during testing. This caused sanity/55a and
sanity/55b to consistently fail.

Add llog_test.ko to lustre-tests also. It's not unheard of to
use Ubuntu for Lustre server. So the package may as well include
llog_test.ko.

Also, update debian/.gitignore.

Test-Parameters: trivial testlist=sanity env=ONLY=55,ONLY_REPEAT=50 clientdistro=ubuntu2204
Test-Parameters: trivial testlist=sanity env=ONLY=55,ONLY_REPEAT=50
Signed-off-by: Timothy Day <timday@amazon.com>
Change-Id: I050de4563478996828886ca623fa96b58f9fef5e
Reviewed-on: https://review.whamcloud.com/c/fs/lustre-release/+/52398
Tested-by: jenkins <devops@whamcloud.com>
Tested-by: Maloo <maloo@whamcloud.com>
Reviewed-by: Thomas Stibor <thomas@stibor.net>
Reviewed-by: Andreas Dilger <adilger@whamcloud.com>