chroot_version_hooks.d: migrate package.keywords

Portage changed the name, so we have to migrate the paths.

BUG=b:204379578
TEST=`./update_chroot` moved all the dirs

Change-Id: I32673d0b088dec106b2d2917506040de35176d0f
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/crosutils/+/3278574
Tested-by: Mike Frysinger <vapier@chromium.org>
Commit-Queue: Mike Frysinger <vapier@chromium.org>
Reviewed-by: Cindy Lin <xcl@google.com>
1 file changed