selftest: Load time_audit and full_audit modules for all tests

selftest: Load time_audit and full_audit modules for all tests

Previously the only test was to load these modules to trigger the
smb_vfs_assert_all_fns check. As these modules just pass through the
calls, they can be loaded for all tests to ensure that the codepaths are
exercised. This would have found the problem in
smb_time_audit_offload_read_recv.

BUG: https://bugzilla.samba.org/show_bug.cgi?id=13568

Signed-off-by: Christof Schmitt <cs@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
Autobuild-User(master): Jeremy Allison <jra@samba.org>
Autobuild-Date(master): Mon Aug 13 22:35:20 CEST 2018 on sn-devel-144

(cherry picked from commit a98f09a09db2fc7be85f9171b586e65344a39e92)