openconfig: Regenerate go file from protobuf.
openconfig: Regenerate go file from protobuf.

We're regenerating the go protobuf file to make it compatible with
latest grpc package.

Change-Id: Ic33e5910d73d03db24092fb6d6f16d11aab8e4e7

aristanetworks/goarista,aristanetworks/goarista