3cdcf9de12 tests/intel/kms_dsc: Add force dsc and joiner test cases
a7fafee29a tests/intel/kms_dsc_helper: Add helper func()
943605e548 tests/kms_joiner_helper: Add igt_is_joiner_supported_by_source()
0c4e6b55eb tests/intel/kms_joiner_helper: Add igt_get_joined_pipes_name()