This update stops setting the root password and locks the root account
Test Plan:
PASS: Verify root account can't be logged into with 'root' as password.
PASS: Verify can set root password with 'sudo passwd root'
Story: 2009968
Task: 46997
Signed-off-by: Eric MacDonald <eric.macdonald@windriver.com>
Change-Id: I5ae53c2e457ffba3cdaea7bb45ff82bb60945083
dcc78cfdb9