CA-166984: Fix paths and parameters to scsi_id
CA-166984: Fix paths and parameters to scsi_id

The paths and parameters to scsi_id changed  since CentOS 5. Update them
accordingly.

Signed-off-by: Ross Lagerwall <ross.lagerwall@citrix.com>
Reviewed by: Sharath Babu <sharath.babu@citrix.com>

GitHub: closes xenserver/xencert#48

xenserver/xencert,chandrikas/xencert,xenserver/xencert,xenserver/xencert,chandrikas/xencert,vivekkumac/xencert,chandrikas/xencert,vivekkumac/xencert,vivekkumac/xencert