add analog clock attributes to docs

Change-Id: I70e8a7897f9e076664ea5069ee9e19e458e8b36b

Author: scottamain

core/java/android/widget/AnalogClock.java

@@ -36,6 +36,10 @@
 /**
  * This widget display an analogic clock with two hands for hours and
  * minutes.
+ *
+ * @attr ref android.R.styleable#AnalogClock_dial
+ * @attr ref android.R.styleable#AnalogClock_hand_hour
+ * @attr ref android.R.styleable#AnalogClock_hand_minute
  */
 @RemoteView
 public class AnalogClock extends View {