Fix android.os.strictmode.LeakedClosableViolation

Test: Check log.

Change-Id: I488fc6c4288bc3843a2be35a8e2988738441263e
Signed-off-by: Taesu Lee <taesu82.lee@samsung.com>

src/com/android/messaging/ui/mediapicker/CameraManager.java

@@ -636,6 +636,7 @@ class CameraManager implements FocusOverlayManager.Listener {
             }
         }
 
+        mMediaRecorder.closeVideoFileDescriptor();
         mMediaRecorder.release();
         mMediaRecorder = null;