[xbmc] Updated package builder files for xbmc & xbmc-theme-Confluence in package mediacenter, to my version of FernetMenta/xbmc (beppec56/xbmc:master-beppe_oe-cf4e76d)
[xbmc] Renamed patches to use FernetMenta/xbmc (beppec56/xbmc:master- cf4e76d)
[xbmc] Removed xvba patch, not needed in FernetMenta/xbmc (beppec56/xbmc:master-cf4e76d)
[xbmc] Compile dual core, there are problems compiling with more cores
Revert "[xbmc] Enabled xbmc internal ffmpeg. With the external one there are problem converting from DTS to PCM stereo", test only

This reverts commit 07541f4b271968409b4cd87155b48f3dedf2edad.