2) initial EGL support
 3) libva.spec update for RPM build
Signed-off-by: Guoliang Ji <guoliangx.ji@intel.com>
Signed-off-by: Jason Hu <jason.hu@intel.com>
Signed-off-by: Stephen Ware <stephen.e.ware@intel.com>
Signed-off-by: Austin Yuan <shengquan.yuan@gmail.com>