initscripts-nilrt: normalize iptables.conf location
initscripts-nilrt: normalize iptables.conf location

Previously we had been storing iptables.conf in the configfs so that
both runmode and safemode could make use of it. However, now that the
configfs and safemode are going away, there is no longer any need to do
this. Instead, read the iptables config from /etc/sysconfig/iptables.

Natinst-Reviewboard-ID: 113092
Reviewed-by: Ken Sharp <e6c8ad8f54d15df4645e8aaf3f7a209bc3688570@ni.com>
Signed-off-by: Richard Tollerton <67c688e7f7482ba5c4ebe3d70bc77594748182a6@ni.com>

ni/meta-nilrt,ni/meta-nilrt,ni/meta-nilrt,ni/meta-nilrt,ni/meta-nilrt