Open keystone service port on Fedora.

This port allow keystone admin without logging in the bootstrap node. The
patch also rename the script making it run before the 98-boot-stack,
the 98-boot-stack will add some rules to the firewall that shouldn't be
saved in the /etc/sysconfig/iptables.

Change-Id: I2497e3ce7b20761bbc29f71f778ba349f6c21b09
Merge "Open keystone service port on Fedora."