shadow: fix pam configs for chpasswd, newusers
Fix below errors while pam is enabled on target:
root@qemux86:~# newusers
newusers: PAM: Authentication failure
root@qemux86:~# chpasswd
chpasswd: PAM: Authentication failure
The configs copied from "chgpasswd" which command works with pam.
(From OE-Core rev:
f6efc1dbd1f3a0f68ee731ff2b5a5d798ecf2cf8)
Signed-off-by: Hu <yadi.hu@windriver.com>
Signed-off-by: Wenzong Fan <wenzong.fan@windriver.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
Signed-off-by: Armin Kuster <akuster808@gmail.com>
