Specify go_package in its full path

The newer version of protoc-gen-go doesn't support the current form.

Signed-off-by: Kazuyoshi Kato <[email protected]>

Author: kzys

internal/vmservice/vmservice.pb.go

@@ -1,7 +1,7 @@
 syntax = 'proto3';
 
 package vmservice;
-option go_package = "vmservice";
+option go_package = "github.com/Microsoft/hcsshim/internal/vmservice";
 
 import "google/protobuf/empty.proto";
 import "google/protobuf/struct.proto";