Shell nologin whether provided by shadow or util-linux is installed to
/sbin/nologin in oe-core. But the default shell of adduser is
/usr/sbin/nologin and will fail to create a new user.
Set the default shell with /sbin/nologin to fix the issue.
Signed-off-by: Kai Kang <kai.kang@windriver.com>
Signed-off-by: Khem Raj <raj.khem@gmail.com>