camera_metadata: add android.lens.state MOVING enum value

Bug: 10621609
Change-Id: Ia4fa15db99350f920741f244ae7772520657fdd2
diff --git a/core/java/android/hardware/camera2/CaptureResult.java b/core/java/android/hardware/camera2/CaptureResult.java
index bd151a2..2b951bb 100644
--- a/core/java/android/hardware/camera2/CaptureResult.java
+++ b/core/java/android/hardware/camera2/CaptureResult.java
@@ -576,6 +576,7 @@
      * Current lens status
      * </p>
      * @see #LENS_STATE_STATIONARY
+     * @see #LENS_STATE_MOVING
      */
     public static final Key<Integer> LENS_STATE =
             new Key<Integer>("android.lens.state", int.class);