isci: add "isci_id" attribute

Allow each controller to be identified via sysfs.

# cat /sys/class/scsi_host/host13/isci_id
1

Signed-off-by: Dan Williams <dan.j.williams@intel.com>
This commit is contained in:
Dan Williams 2011-03-10 00:01:43 -08:00
commit 34cad85d18