Updated compliance section for 4G & 5G

Change-Id: I45fa0cfc05b639fa5a6f73ae7a987fb2440b401e
diff --git a/overview/3gpp-compliance-4g.rst b/overview/3gpp-compliance-4g.rst
index abdfa5b..23026df 100644
--- a/overview/3gpp-compliance-4g.rst
+++ b/overview/3gpp-compliance-4g.rst
@@ -22,12 +22,16 @@
 High Level Procedures/Functions Not Supported
 ---------------------------------------------
 
+    - Location based services
     - MME, SGW handover
     - Indirect tunnel forwarding
     - Roaming architecture
     - Charging
     - Lawful intercept
     - IMS integration
+    - dedicated Bearers ( Partial support)
+    - Multiple PDN Support
+    - CSFB
 
 MME Compliance
 --------------