isci: Manage tag releases differently when aborting tasks.

When an individual request is being terminated, the request's tag
is managed in the terminate function.

Signed-off-by: Jeff Skirvin <jeffrey.d.skirvin@intel.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>

drivers/scsi/isci/request.h

@@ -87,6 +87,7 @@ struct isci_request {
 	#define IREQ_PENDING_ABORT 4 /* Set == device was not suspended yet */
 	#define IREQ_TC_ABORT_POSTED 5
 	#define IREQ_ABORT_PATH_ACTIVE 6
+	#define IREQ_NO_AUTO_FREE_TAG 7 /* Set when being explicitly managed */
 	unsigned long flags;
 	/* XXX kill ttype and ttype_ptr, allocate full sas_task */
 	union ttype_ptr_union {