Add build config values for data use defaults

Don't use hard coded defaults - use build configs instead.

Iface is now ONLY set by config so gservices doesn't need to.

bug:2576057
Change-Id: I8f9e3bc51af3b1cdf8bb4290a43197d9c01e2a14
diff --git a/core/java/android/provider/Settings.java b/core/java/android/provider/Settings.java
index e640005..e8c09b0 100644
--- a/core/java/android/provider/Settings.java
+++ b/core/java/android/provider/Settings.java
@@ -3306,13 +3306,13 @@
          * The bandwidth throttle threshold (long)
          * @hide
          */
-        public static final String THROTTLE_THRESHOLD = "throttle_threshold";
+        public static final String THROTTLE_THRESHOLD_BYTES = "throttle_threshold_bytes";
 
         /**
          * The bandwidth throttle value (kbps)
          * @hide
          */
-        public static final String THROTTLE_VALUE = "throttle_value";
+        public static final String THROTTLE_VALUE_KBITSPS = "throttle_value_kbitsps";
 
         /**
          * The bandwidth throttle reset calendar day (1-28)
@@ -3327,12 +3327,6 @@
         public static final String THROTTLE_NOTIFICATION_TYPE = "throttle_notification_type";
 
         /**
-         * The interface we throttle
-         * @hide
-         */
-        public static final String THROTTLE_IFACE = "throttle_iface";
-
-        /**
          * Help URI for data throttling policy
          * @hide
          */