drm/xe/kunit: Test rtp with no actions

drm/xe/kunit: Test rtp with no actions

The OOB WAs use xe_rtp_process(), without passing an sr to save result
of the actions since there are none. They are also executed in a gt-only
context, making it harder to share the implementation. Thus, introduce a
new set of tests to check these RTP entries. The only check that can be
done is if the entry was marked as active.

Before commit fd6797ec50c5 ("drm/xe/rtp: Fix off-by-one when processing
rules") several of these tests were failing: the processing of OR'ed
entries would make the subsequent entry to be inadvertently enabled.

Reviewed-by: Gustavo Sousa <gustavo.sousa@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240727015907.899192-6-lucas.demarchi@intel.com
Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>