Added aspect ratio related fields to VAEncSequenceParameterBufferH264
Added aspect ratio related fields to VAEncSequenceParameterBufferH264

Signed-off-by: Jonathan Bian <9991297f52a6f9abf50455fb144f81941846d99c@intel.com>

gbeauchesne/libva,zzhhui/libva,01org/iotg-lin-gfx-libva,chenxianqin/vaapi-libva,01org/libva-cros,01org/iotg-lin-gfx-libva,pma1/libva,gbeauchesne/libva,01org/iotg-lin-gfx-libva,chenxianqin/vaapi-libva,pma1/libva,gbeauchesne/libva,zzhhui/libva,pma1/libva,01org/libva-cros,01org/libva-cros,zzhhui/libva,chenxianqin/vaapi-libva