API: h264 encode: move up num_macroblocks, next to macroblock_address.
API: h264 encode: move up num_macroblocks, next to macroblock_address.

android-ia/hardware_intel_libva,halleyzhao/libva-fdo,android-ia/hardware_intel_libva,android-ia/hardware_intel_libva,CyanogenMod/android_hardware_intel_libva,CyanogenMod/android_hardware_intel_libva,halleyzhao/libva-fdo,CyanogenMod/android_hardware_intel_libva,halleyzhao/libva-fdo