This update patched keystone to support storing users in keyring
under "CGCS" service.
Test Plan for Debian:
PASS: package build, image build
PASS: system bootstrap, unlock
PASS: Change keystone "admin" password, observe it changes in keyring
too.
PASS: Add a new keystone user "test" with password, add the user to
keyring by "keyring set CGCS test". Change test's password,
observe it changes in keyring too.
PASS: Delete the keystone user "test", observe user "test" is deleted
from keyring.
Story: 2009965
Task: 44970
Signed-off-by: Andy Ning <andy.ning@windriver.com>
Change-Id: I75ea23f87487b764370a0990ad8aba896d3a0767