[xbmc] Updated package builder files for xbmc & xbmc-theme-Confluence in package mediacenter, to my version of FernetMenta/xbmc (beppec56/xbmc:master-beppe_oe-841cb5a)
[xbmc] Renamed patches to use FernetMenta/xbmc (beppec56/xbmc:master-841cb5a)
[xbmc] Removed xvba patch, not needed in FernetMenta/xbmc (beppec56/xbmc:master-841cb5a)
[xbmc] Compile dual core, there are problems compiling with more cores