[VOL-2364] Adding DEADLINE_EXCEDEED to inter-container error codes and exposing the codes

Change-Id: Id5ae181990f7520cb9ef6a0e55e7b27719120466
diff --git a/protos/voltha_protos/inter_container.proto b/protos/voltha_protos/inter_container.proto
index f69be88..b6868cf 100644
--- a/protos/voltha_protos/inter_container.proto
+++ b/protos/voltha_protos/inter_container.proto
@@ -31,11 +31,12 @@
     enum codes {
         UNSUPPORTED_REQUEST = 0;
         INVALID_PARAMETERS = 1;
+        DEADLINE_EXCEDEED = 2;
     }
 }
 
 message Error {
-    ErrorCode code = 1;
+    ErrorCode.codes code = 1;
     string reason = 2;
 }