Add per network static IP settings

Remove the existing global static IP settings and add support
for per network configuration

Change-Id: I5a6d8b877471b8c8ad07951c96d273893754607f
diff --git a/core/java/android/provider/Settings.java b/core/java/android/provider/Settings.java
index e1c84ef..5b4aedb 100644
--- a/core/java/android/provider/Settings.java
+++ b/core/java/android/provider/Settings.java
@@ -1128,6 +1128,7 @@
          */
         public static final int WIFI_SLEEP_POLICY_NEVER = 2;
 
+        //TODO: deprecate static IP constants
         /**
          * Whether to use static IP and other static network attributes.
          * <p>