user.eclass: Add sysroot/etc/shadow support

Upgrading sudo created auth issues during build_image traced to a lack of entries in etc/shadow.
This is a patch to populate entries in etc/shadow for proper auth.

BUG=chromium:905444
TEST=Built image with fresh board setup, rebuilt image, built from master then from changes
Cq-Depend: chromium:1828146
Change-Id: I3debc26a0e4110dc6015a8b4f910b24592b98970
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/overlays/eclass-overlay/+/1825515
Reviewed-by: Mike Frysinger <vapier@chromium.org>
Reviewed-by: Benjamin Gordon <bmgordon@chromium.org>
Tested-by: Pranay Shoroff <pshoroff@google.com>
Commit-Queue: Pranay Shoroff <pshoroff@google.com>
1 file changed
tree: 880db2d01a5ccf16020a8cb53117c83d89b5fdd1
  1. eclass/
  2. metadata/
  3. profiles/
  4. OWNERS
  5. PRESUBMIT.cfg