test: don't form a pinch gesture for the clickfinger distance test

If the fingers are in the position in the current code, that's not a 3fg
click, that's a pinch. Let's use something more realistic.
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>

test/test-touchpad-buttons.c

@@ -497,7 +497,7 @@ START_TEST(touchpad_3fg_clickfinger_distance)
 
 	litest_drain_events(li);
 
-	litest_touch_down(dev, 0, 90, 70);
+	litest_touch_down(dev, 0, 90, 20);
 	litest_touch_down(dev, 1, 10, 15);
 	litest_touch_down(dev, 2, 10, 15);
 
@@ -530,7 +530,7 @@ START_TEST(touchpad_3fg_clickfinger_distance_btntool)
 
 	litest_drain_events(li);
 
-	litest_touch_down(dev, 0, 90, 90);
+	litest_touch_down(dev, 0, 90, 15);
 	litest_touch_down(dev, 1, 10, 15);
 	libinput_dispatch(li);
 	litest_event(dev, EV_KEY, BTN_TOOL_DOUBLETAP, 0);