The base selinux policies on centos/rhel/oraclelinux have all been
updated in a way that conflicts with the policies we install with
`docker-engine-selinux`. This patch fixes these conflicts.
In addition, removes special cases for old/unsupported versions of
fedora in our selinux package, and change to use a single minimum
version for the selinux base policy package, as this is the minimum
version required to use our selinux policy package.
Signed-off-by: Brian Goff <cpuguy83@gmail.com>