v5: Add kms_busy to satisfy rule of 3. - Abdiel [PATCH 1/4] lib: add igt_dummyload [PATCH 2/4] igt/gem_wait: Use new igt_spin_batch [PATCH 3/4] igt/kms_flip: Use new igt_spin_batch [PATCH 4/4] igt/kms_busy.c: Use new igt_spin_batch