[VOL-2968] Update protos/Makefile to include common.proto

Change-Id: I317df11b31c4265a169e3fe3ae5137653afdefcc
diff --git a/agent/test/Makefile b/agent/test/Makefile
index 4d0fa6f..91b7a70 100644
--- a/agent/test/Makefile
+++ b/agent/test/Makefile
@@ -21,7 +21,7 @@
 TOP_DIR=`pwd`
 OPENOLTDEVICE ?= asfvolt16
 
-OPENOLT_PROTO_VER ?= v3.1.0
+OPENOLT_PROTO_VER ?= v3.3.4
 
 GTEST_VER ?= release-1.8.0
 gtest-target = /usr/local/lib/libgtest.a