move user/group settings to setup_board

Update a few more hardcoded cases to use the active user details rather
than the compile-time constants.

BUG=b:20895978
2 files changed
tree: 1250999eea0e00857b9411aba17239918857d82b
  1. .gitignore
  2. etc/
  3. setup_board
  4. usr/
  5. wrapper.py