sensorservice: ProximitySensor needs to report correct sensor state. am: cebf2e6c am: f3eabb3b am: c33fa517

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/native/+/15459770

Change-Id: I3bfdaa19ca1dbe3c6e22e43e41108291c5292a34