Re-enable karaf distribution
Re-enable karaf distribution

This re-enables opendaylight distribution build to get us back
on par.

Change-Id: I11e5ee4d1f9f9de716f5636ac9afbad0137c93fc
Signed-off-by: Robert Varga <91ae5aa8c7a9f7e57b701db766e23e544aaa6ae9@pantheon.tech>

opendaylight/controller