libpam: avoid overwritting editable files during package updating
Use CONFFILES to mark editable files as such,
/etc/pam.d/common-session
/etc/pam.d/common-auth
/etc/pam.d/common-password
/etc/pam.d/common-session-noninteractive
/etc/pam.d/common-account
If there is no %config micro before the file name in the spec file,
this file will be overwritten after updating package.
This will make our settings lost.
Signed-off-by: Jian Liu <jian.liu@windriver.com> Signed-off-by: Ross Burton <ross.burton@intel.com>
