Revert "update_chroot: Remove separate install pass of post-cross pkgs"

This reverts commit ddd20eba2d62215da063d5045d0f513ea1a30e24
("update_chroot: Remove separate install pass of post-cross pkgs").

This dropped most updates to host-post-cross packages accidentally.

BUG=b:210531704, b:147827347
TEST=./update_chroot; qlist cxxbridge-cmd

Change-Id: I1cdaa73c368f9f737ac382d6867b21223f02ef0a
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/crosutils/+/3339799
Reviewed-by: Manoj Gupta <manojgupta@chromium.org>
Reviewed-by: Mike Frysinger <vapier@chromium.org>
Commit-Queue: Brian Norris <briannorris@chromium.org>
Tested-by: Brian Norris <briannorris@chromium.org>
1 file changed