dist/redhat: add scylla-tools-core to requires list
dist/redhat: add scylla-tools-core to requires list

Fixes #3051

Signed-off-by: Amos Kong <eb01d8f828a6c9a20be4534e72e049aaf41503df@scylladb.com>
Message-Id: <f7013a4fbc241bb4429d855671fee4b845b255cd.1512646123.git.eb01d8f828a6c9a20be4534e72e049aaf41503df@scylladb.com>

duarten/scylla,avikivity/scylla,scylladb/scylla,duarten/scylla,avikivity/scylla,scylladb/scylla,avikivity/scylla,duarten/scylla,scylladb/scylla,scylladb/scylla