Update libpam to 1.1.4, and add dependecy cracklib because run xtexts will
need pam-plugin-cracklib.
There are some additional checks under subdirectory xtests and make it
as a subpackage libpam-xtests.
(From OE-Core rev: f9158bf219479c2da56dd21a13ecee3176cd6f8a)
Signed-off-by: Kang Kai <kai.kang@windriver.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>