Currently the "remember" attribute in pam_pwhistory configuration
is set to "2", which enforces "cannot reuse the last 1 passwords"
in history instead of "cannot reuse the last 2 passwords" stated
in security document.
This update changed "remember" attribute to "3" so that the rule
complies with the document.
Closes-Bug: 1924772
Signed-off-by: Andy Ning <andy.ning@windriver.com>
Change-Id: I340152f8b8a572bc1e86f1eb4a14eb8e392f6334
7877dbc6ba