Fix xnba using xCAT::Scope without 'use'ing it.

git-svn-id: https://svn.code.sf.net/p/xcat/code/xcat-core/trunk@11722 8638fb3e-16cb-4fca-ae20-7b5d299a9bcd

xCAT-server/lib/xcat/plugins/xnba.pm

@@ -5,6 +5,7 @@ use Sys::Syslog;
 use Socket;
 use File::Copy;
 use File::Path;
+use xCAT::Scope;
 use Getopt::Long;
 
 my $addkcmdlinehandled;