change local lpar_netboot to connect to node from conserver, which gives us the capability to watch the installation from rcons and take actions from rnetboot at the same time.
TODO: rnetboot on IVM will be temporary broken. Will fix it soon
git-svn-id: https://svn.code.sf.net/p/xcat/code/xcat-core/trunk@3033 8638fb3e-16cb-4fca-ae20-7b5d299a9bcd