Split out NetworkStack and Tethering permission

Split the networkstack and tethering permission out of
privapp-permissions-platform.xml so that they can get
overridden properly.

Bug: 151213404
Test: NetworkStackTests
      TetheringTests
Change-Id: Ic5dea321a441c1366f5faf2ecd683a2fa708bc80
diff --git a/data/etc/Android.bp b/data/etc/Android.bp
index 85b60f8..be1e2b2 100644
--- a/data/etc/Android.bp
+++ b/data/etc/Android.bp
@@ -127,6 +127,20 @@
 }
 
 prebuilt_etc {
+    name: "privapp_whitelist_com.android.networkstack",
+    sub_dir: "permissions",
+    src: "com.android.networkstack.xml",
+    filename_from_src: true,
+}
+
+prebuilt_etc {
+    name: "privapp_whitelist_com.android.networkstack.tethering",
+    sub_dir: "permissions",
+    src: "com.android.networkstack.tethering.xml",
+    filename_from_src: true,
+}
+
+prebuilt_etc {
     name: "privapp_whitelist_com.android.provision",
     system_ext_specific: true,
     sub_dir: "permissions",