lib/igt_core: fix igt_skip_on_simulation regression

I've forgotten that we might want to call this from within specific
subtests (or special helpers like the autoresume one).

Also props for being competent enough to write a testcase, but
incompetent enough to botch the job up.

Fix both things and remove a leftover debug printf while at it.

Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>

lib/igt_core.c

@@ -1132,7 +1132,7 @@ void igt_skip_on_simulation(void)
 	if (igt_only_list_subtests())
 		return;
 
-	if (!in_fixture) {
+	if (!in_fixture && !in_subtest) {
 		igt_fixture
 			igt_require(!igt_run_in_simulation());
 	} else