Speed up tests by injecting input events asynchronously

This way, we can get a humble ~3% acceleration

Change-Id: I53705d457838ea41be9af9ae0851ee8d2e2c1c3f
diff --git a/tests/tapl/com/android/launcher3/tapl/LauncherInstrumentation.java b/tests/tapl/com/android/launcher3/tapl/LauncherInstrumentation.java
index c74dea9..16891e2 100644
--- a/tests/tapl/com/android/launcher3/tapl/LauncherInstrumentation.java
+++ b/tests/tapl/com/android/launcher3/tapl/LauncherInstrumentation.java
@@ -1184,7 +1184,7 @@
 
         final MotionEvent event = getMotionEvent(downTime, currentTime, action, point.x, point.y);
         assertTrue("injectInputEvent failed",
-                mInstrumentation.getUiAutomation().injectInputEvent(event, true));
+                mInstrumentation.getUiAutomation().injectInputEvent(event, false));
         event.recycle();
     }