Enable Tethering Options

This makes tethering options available in the Wireless settings.

Change-Id: Ia9ee66fb1c6577b52a59a57b8592c5194c07b779
diff --git a/overlay/frameworks/base/core/res/res/values/config.xml b/overlay/frameworks/base/core/res/res/values/config.xml
index 712d911..abfb29e 100755
--- a/overlay/frameworks/base/core/res/res/values/config.xml
+++ b/overlay/frameworks/base/core/res/res/values/config.xml
@@ -23,4 +23,25 @@
          autodetected from the Configuration. -->
     <bool name="config_showNavigationBar">true</bool>
 
+    <!-- List of regexpressions describing the interface (if any) that represent tetherable
+         USB interfaces.  If the device doesn't want to support tething over USB this should
+         be empty.  An example would be "usb.*" -->
+    <string-array translatable="false" name="config_tether_usb_regexs">
+        <item>"usb\\d"</item>
+    </string-array>
+
+    <!-- List of regexpressions describing the interface (if any) that represent tetherable
+         Wifi interfaces.  If the device doesn't want to support tethering over Wifi this
+         should be empty.  An example would be "softap.*" -->
+    <string-array translatable="false" name="config_tether_wifi_regexs">
+        <item>"softap.*"</item>
+    </string-array>
+
+    <!-- Array of allowable ConnectivityManager network types for tethering -->
+    <integer-array translatable="false" name="config_tether_upstream_types">
+        <item>0</item>
+        <item>1</item>
+        <item>5</item>
+    </integer-array>
+
 </resources>