build_image: calculate package sizes using pkg_size

This change computes the size of all of the built packages after the
rootfs has been constructed. This information is stored in the build
directory as ${BOARD}-package-sizes.json.

BUG=chromium:1000449
TEST=build_image --board ${BOARD} && [[ -f "src/build/images/${BOARD}/latest/chromiumos_base_image.bin-package-sizes.json" ]] && echo Success

Cq-Depend: chromium:1801037
Change-Id: I82d56a079b0b91c0c2fce7c62761b461d08b8de3
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/crosutils/+/1827722
Tested-by: Will Bradley <wbbradley@chromium.org>
Legacy-Commit-Queue: Commit Bot <commit-bot@chromium.org>
Reviewed-by: Mike Frysinger <vapier@chromium.org>
Reviewed-by: Alex Klein <saklein@chromium.org>
1 file changed