Fix interface revision of dummy driver.
Fix interface revision of dummy driver.

01org/libva-cros,android-ia/hardware_intel_libva,01org/libva-cros,halleyzhao/libva-fdo,CyanogenMod/android_hardware_intel_libva,halleyzhao/libva-fdo,chenxianqin/vaapi-libva,CyanogenMod/android_hardware_intel_libva,gbeauchesne/libva,zzhhui/libva,pma1/libva,halleyzhao/libva-fdo,chenxianqin/vaapi-libva,Distrotech/libva,zzhhui/libva,chenxianqin/vaapi-libva,android-ia/hardware_intel_libva,zzhhui/libva,Distrotech/libva,01org/iotg-lin-gfx-libva,01org/libva-cros,gbeauchesne/libva,pma1/libva,Distrotech/libva,pma1/libva,01org/iotg-lin-gfx-libva,android-ia/hardware_intel_libva,CyanogenMod/android_hardware_intel_libva,01org/iotg-lin-gfx-libva,gbeauchesne/libva