Add omci-sim lib to Dockerfile

Change-Id: Icae8df4613a24ed495ba1371134be9cbf8d4ac57
diff --git a/Dockerfile b/Dockerfile
index d1aebf1..a85552e 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -29,7 +29,8 @@
  && mv /tmp/protoc3/bin/* /usr/local/bin/ \
  && mv /tmp/protoc3/include/* /usr/local/include/ \
  && go get -v github.com/grpc-ecosystem/grpc-gateway/protoc-gen-grpc-gateway \
- && go get -v github.com/golang/protobuf/protoc-gen-go
+ && go get -v github.com/golang/protobuf/protoc-gen-go \
+ && go get -v github.com/opencord/omci-sim
 
 # copy and build
 WORKDIR /go/src/gerrit.opencord.org/voltha-bbsim