prebuild: Add vc4 v3d_packet_v*_pack.h prebuilt generation and Android.mk changes

Add v3d_packet_v*_pack.h file generation to the
aosp-gen-prebuilt.sh script and rework the Android.mk
file to copy the prebuilt file.

Change-Id: Idfa51e226a23f67bb7a477b3e5de7fe4ddf8235a
Signed-off-by: John Stultz <john.stultz@linaro.org>
2 files changed