drm/xe/tests: Move shrink test out of xe_bo

The subtest typically has an execution time long enough to motivate a
separate test so that it can be easily excluded if needed.

v2: reword commit message(Thomas)

Cc: Matthew Auld <[e-mail]>
Cc: Thomas Hellström <[e-mail]>
Reviewed-by: Thomas Hellström <[e-mail]>
Link: https://patchwork.freedesktop.org/patch/msgid/[e-mail]
Signed-off-by: Nirmoy Das <[e-mail]>

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

···
 static struct kunit_case xe_bo_tests[] = {
 	KUNIT_CASE_PARAM(xe_ccs_migrate_kunit, xe_pci_live_device_gen_param),
 	KUNIT_CASE_PARAM(xe_bo_evict_kunit, xe_pci_live_device_gen_param),
-	KUNIT_CASE_PARAM_ATTR(xe_bo_shrink_kunit, xe_pci_live_device_gen_param,
-			      {.speed = KUNIT_SPEED_SLOW}),
 	{}
 };
 
···
 	.init = xe_kunit_helper_xe_device_live_test_init,
 };
 EXPORT_SYMBOL_IF_KUNIT(xe_bo_test_suite);
+
+static struct kunit_case xe_bo_shrink_test[] = {
+	KUNIT_CASE_PARAM_ATTR(xe_bo_shrink_kunit, xe_pci_live_device_gen_param,
+			      {.speed = KUNIT_SPEED_SLOW}),
+	{}
+};
+
+VISIBLE_IF_KUNIT
+struct kunit_suite xe_bo_shrink_test_suite = {
+	.name = "xe_bo_shrink",
+	.test_cases = xe_bo_shrink_test,
+	.init = xe_kunit_helper_xe_device_live_test_init,
+};
+EXPORT_SYMBOL_IF_KUNIT(xe_bo_shrink_test_suite);

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

···
 #include <kunit/test.h>
 
 extern struct kunit_suite xe_bo_test_suite;
+extern struct kunit_suite xe_bo_shrink_test_suite;
 extern struct kunit_suite xe_dma_buf_test_suite;
 extern struct kunit_suite xe_migrate_test_suite;
 extern struct kunit_suite xe_mocs_test_suite;
 
 kunit_test_suite(xe_bo_test_suite);
+kunit_test_suite(xe_bo_shrink_test_suite);
 kunit_test_suite(xe_dma_buf_test_suite);
 kunit_test_suite(xe_migrate_test_suite);
 kunit_test_suite(xe_mocs_test_suite);