drm/xe/kunit: Fix forcewake assertion in mocs test

The MOCS kunit test calls KUNIT_ASSERT_TRUE_MSG() with a condition of
'true;' this prevents the assertion from ever failing.  Replace
KUNIT_ASSERT_TRUE_MSG with KUNIT_FAIL_AND_ABORT to get the intended
failure behavior in cases where forcewake was not acquired successfully.

Fixes: 51c0ee8 ("drm/xe/tests/mocs: Hold XE_FORCEWAKE_ALL for LNCF regs")
Cc: Tejas Upadhyay <tejas.upadhyay@intel.com>
Cc: Gustavo Sousa <gustavo.sousa@intel.com>
Reviewed-by: Lucas De Marchi <lucas.demarchi@intel.com>
Reviewed-by: Gustavo Sousa <gustavo.sousa@intel.com>
Link: https://patch.msgid.link/20251113234038.2256106-2-matthew.d.roper@intel.com
Signed-off-by: Matt Roper <matthew.d.roper@intel.com>
(cherry picked from commit 9be4f0f)
Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>

Author: mattrope

drivers/gpu/drm/xe/tests/xe_mocs.c

@@ -49,7 +49,7 @@ static void read_l3cc_table(struct xe_gt *gt,
 	fw_ref = xe_force_wake_get(gt_to_fw(gt), XE_FORCEWAKE_ALL);
 	if (!xe_force_wake_ref_has_domain(fw_ref, XE_FORCEWAKE_ALL)) {
 		xe_force_wake_put(gt_to_fw(gt), fw_ref);
-		KUNIT_ASSERT_TRUE_MSG(test, true, "Forcewake Failed.\n");
+		KUNIT_FAIL_AND_ABORT(test, "Forcewake Failed.\n");
 	}
 
 	for (i = 0; i < info->num_mocs_regs; i++) {