[VOL-2225]Migration to BAL3.2.3.2

- Updates to test files to compile for BAL3.2.3.2
- Addressed various comments
- Test with two ONUs on same PON port.
- EAP/HSIA/DHCP working
-  Following test cases working
   1. Disable/Enable/Reboot ONU
   2. Disable/Enable OLT
   3. ONU disable -> subscriber unprovision ->
      enable -> subscriber provision
- Commented out UTs for FlowAdd and FlowRemove and
  will be addressed as part of another commit
- Fix tm_qmp creation for BAL3.2 (needed 1Tcont multi gem)
- Re-organize code after review comments
- Bump version to 2.1.0 (support for ACL and multicast group config)

Change-Id: I4245d14bba8878fdde6ee361ad54060068de205f
diff --git a/protos/Makefile b/protos/Makefile
index 153eec5..80b9875 100644
--- a/protos/Makefile
+++ b/protos/Makefile
@@ -19,7 +19,7 @@
 # This specifies the GIT tag in https://github.com/opencord/voltha-protos
 # repo that we need to refer to, to pick the right version of
 # openolt.proto and tech_profile.proto
-OPENOLT_PROTO_VER ?= v1.0.3
+OPENOLT_PROTO_VER ?= v3.1.0
 
 CXX ?= g++
 #powerpc64-fsl-linux-g++