Update scylla-ami submodule
Update scylla-ami submodule

* dist/ami/files/scylla-ami c7e5a70...b7db861 (2):
  > scylla-ami-setup.service: run only on first startup
  > Use fstab to mount RAID volume on every reboot

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