s/drmtest_/igt_/

Requested-by: Chris Wilson <chris@chris-wilson.co.uk>
Acked-by: Damien Lespiau <damien.lespiau@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>

tests/gem_ctx_basic.c

@@ -143,7 +143,7 @@ int main(int argc, char *argv[])
 	fd = drm_open_any();
 	devid = intel_get_drm_devid(fd);
 
-	if (drmtest_run_in_simulation()) {
+	if (igt_run_in_simulation()) {
 		num_contexts = 2;
 		iter = 4;
 	}