[libvirt] [Patch] Libvirt & Autobuild

Attached is a small fix to get libvirt working w/ autobuild. Autobuild attempts to create and test the RPM, which lists the PolicyKit as one of the files to be installed, and thus if it is not installed, autobuild reports an error and fails. The was to get this file installed is to specify --with-polkit to ./autogen which I added to the autobuild.sh build script. (also the syntax check errors broke autobuild, but these have been fixed according to the latest email on the list). Knock on wood, after this libvirt should work w/ autobuild and will be built nightly, and I can finish getting oVirt working with it. -Mo