VOL-3419: OpenOLT adapter at scale constantly takes more that 10 seconds to react to flows
- Pass information to agent to do the flow replication
- Consolidate various locks in the adapter and remove reduntant locks
- use voltha-proto version 4.0.2 and voltha-lib-go version 4.0.0
- Bump adapter version to 3.0.0

Change-Id: Ic053c54e5319bb1736ec74facfc79dd10058ecf5
diff --git a/pkg/mocks/mockEventproxy.go b/pkg/mocks/mockEventproxy.go
index 2abddf2..816b0e3 100644
--- a/pkg/mocks/mockEventproxy.go
+++ b/pkg/mocks/mockEventproxy.go
@@ -20,7 +20,7 @@
 import (
 	"context"
 	"errors"
-	"github.com/opencord/voltha-protos/v3/go/voltha"
+	"github.com/opencord/voltha-protos/v4/go/voltha"
 )
 
 // MockEventProxy for mocking EventProxyIntf