IMS: Provide net_admin permission so that IPSec could be configured/used.

IMS configures the security database in kernel with keys generated from ISIM.

Change-Id: Iae9fb85f286ff2a627369d784a127bf7d4d8f4b3
diff --git a/data/etc/platform.xml b/data/etc/platform.xml
index df80546..692ea9d 100644
--- a/data/etc/platform.xml
+++ b/data/etc/platform.xml
@@ -62,6 +62,10 @@
         <group gid="mtp" />
     </permission>
 
+    <permission name="android.permission.NET_ADMIN" >
+        <group gid="net_admin" />
+    </permission>
+
     <!-- The group that /cache belongs to, linked to the permission
          set on the applications that can access /cache -->
     <permission name="android.permission.ACCESS_CACHE_FILESYSTEM" >