kms_psr_sink_crc: Add BAT test for PSR active.

It takes from 2 to 5 seconds to run.

Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
diff --git a/tests/kms_psr_sink_crc.c b/tests/kms_psr_sink_crc.c
index 8cd11a7..5fad9b5 100644
--- a/tests/kms_psr_sink_crc.c
+++ b/tests/kms_psr_sink_crc.c
@@ -569,6 +569,11 @@
 		display_init(&data);
 	}
 
+	igt_subtest("psr_basic") {
+		setup_test_plane(&data);
+		igt_assert(wait_psr_entry(&data));
+	}
+
 	for (op = PAGE_FLIP; op <= RENDER; op++) {
 		igt_subtest_f("primary_%s", op_str(op)) {
 			data.test_plane = PRIMARY;