SELinux: swift denied access to /var/lib/swift/.local

Swift services cannot search /var/lib/swift/.local. This is a
custom policy to allow search for swift until the upstream SELinux
policy is updated.

Change-Id: Ie6197cc63597e29f0e84f97d67b1935c67e54a53
Partial-Bug: 1379081
Merge "SELinux: swift denied access to /var/lib/swift/.local"