tpm_manager: Add tpm_manager user and group

Add tpm_manager user and group to security_AccountsBaseline

BUG=brillo:1127
TEST=test_that security_AccountsBaseline on DUT
CQ-DEPEND=CL:273280

Change-Id: I285663474ba06aaae5ebd4850eee682c38048902
Reviewed-on: https://chromium-review.googlesource.com/273271
Trybot-Ready: Utkarsh Sanghi <usanghi@chromium.org>
Tested-by: Utkarsh Sanghi <usanghi@chromium.org>
Reviewed-by: Jorge Lucangeli Obes <jorgelo@chromium.org>
Commit-Queue: Utkarsh Sanghi <usanghi@chromium.org>
2 files changed