The following changes are made, in order to remove the
dependencies to 'admin' user and use 'dcmanager' user to
authenticate with services in the subclouds:
. Configure dcmanager user for dcorch
. Add the dcmanager user id to the static.yaml on subclouds
during upgrade
Depends-On: https://review.opendev.org/#/c/735994/
Partial-Bug: 1883758
Change-Id: I72ed05d38ac6c25d240f99c4aeaf13b51273471f
Signed-off-by: Tao Liu <tao.liu@windriver.com>