Convert control loop tests over to simulated event loop

This makes it so that we properly only use ShmEventLoop for running in
realtime on a robot.  Very nice.

Change-Id: I46b770b336f59e08cfaf28511b3bd5689f72fff1
diff --git a/aos/controls/BUILD b/aos/controls/BUILD
index 30fe5c6..a612ecb 100644
--- a/aos/controls/BUILD
+++ b/aos/controls/BUILD
@@ -27,7 +27,7 @@
         "control_loop_test.h",
     ],
     deps = [
-        "//aos/events:shm-event-loop",
+        "//aos/events:simulated_event_loop",
         "//aos/logging:queue_logging",
         "//aos/robot_state",
         "//aos/testing:googletest",