Add VIBRATE_IN_SILENT to the settings database & backup.

Change-Id: Id31e24ef0536278ccb66b22bba7ed2b47eb1a371
diff --git a/core/java/android/provider/Settings.java b/core/java/android/provider/Settings.java
index fdde591..1483f13 100644
--- a/core/java/android/provider/Settings.java
+++ b/core/java/android/provider/Settings.java
@@ -1708,6 +1708,7 @@
             VOLUME_ALARM + APPEND_FOR_LAST_AUDIBLE,
             VOLUME_NOTIFICATION + APPEND_FOR_LAST_AUDIBLE,
             VOLUME_BLUETOOTH_SCO + APPEND_FOR_LAST_AUDIBLE,
+            VIBRATE_IN_SILENT,
             TEXT_AUTO_REPLACE,
             TEXT_AUTO_CAPS,
             TEXT_AUTO_PUNCTUATE,