drmtest: add progress indicator

Some test that trash the aperture necessarily need to take forever, so
add a little progress indicator to keep worried minds at peace.

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

tests/gem_cs_prefetch.c

@@ -157,8 +157,10 @@ int main(int argc, char **argv)
 
 		// leak buffers
 		//drm_intel_bo_unreference(batch_bo);
+		drmtest_progress("gem_cs_prefetch: ", i, count);
 	}
 
+	fprintf(stderr, "Test suceeded, cleanup up - this might take a while.\n");
 	drm_intel_bufmgr_destroy(bufmgr);
 
 	close(fd);