drm/ttm/tests: Correct modules' licenses

The test files are GPL and MIT, so update the definitions accordingly.

Signed-off-by: Karolina Stolarek <[e-mail]>
Reviewed-by: Thomas Hellström <[e-mail]>
Signed-off-by: Arunpravin Paneer Selvam <[e-mail]>
Link: https://patchwork.freedesktop.org/patch/msgid/54cd7289d[e-mail]

drivers/gpu/drm/ttm/tests/ttm_bo_test.c

···
 
 kunit_test_suites(&ttm_bo_test_suite);
 
-MODULE_LICENSE("GPL");
+MODULE_LICENSE("GPL and additional rights");

drivers/gpu/drm/ttm/tests/ttm_device_test.c

···
 
 kunit_test_suites(&ttm_device_test_suite);
 
-MODULE_LICENSE("GPL");
+MODULE_LICENSE("GPL and additional rights");

drivers/gpu/drm/ttm/tests/ttm_kunit_helpers.c

···
 }
 EXPORT_SYMBOL_GPL(ttm_test_devices_fini);
 
-MODULE_LICENSE("GPL");
+MODULE_LICENSE("GPL and additional rights");

drivers/gpu/drm/ttm/tests/ttm_pool_test.c

···
 
 kunit_test_suites(&ttm_pool_test_suite);
 
-MODULE_LICENSE("GPL");
+MODULE_LICENSE("GPL and additional rights");

drivers/gpu/drm/ttm/tests/ttm_resource_test.c

···
 
 kunit_test_suites(&ttm_resource_test_suite);
 
-MODULE_LICENSE("GPL");
+MODULE_LICENSE("GPL and additional rights");

drivers/gpu/drm/ttm/tests/ttm_tt_test.c

···
 
 kunit_test_suites(&ttm_tt_test_suite);
 
-MODULE_LICENSE("GPL");
+MODULE_LICENSE("GPL and additional rights");