trunks: Add the trunks user and group

This CL creates the trunks user and groups.
It also adds trunks to the TSS group, so that it
can talk to the TPM.

TEST=Ran build_packages, build_image and cros flash to a new DUT
     then checked if trunks user and groups were present in the DUT

Change-Id: I4c5d1bbb4a60caa2282003f47ea7755bf3128f5c
Reviewed-by: Utkarsh Sanghi <>
Commit-Queue: Utkarsh Sanghi <>
Tested-by: Utkarsh Sanghi <>
3 files changed
tree: 884f43f84c3886b352d76cd2d9e3cfa74e1daad2
  1. eclass/
  2. metadata/
  3. profiles/