[SCSI] libsas: abstract STP task status into a function

Break out the frame processor for STP tasks from aic94xx so they can
be shared by other SAS HBA's

Original patch from Jeff Garzik <jeff@garzik.org>

Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
diff --git a/drivers/scsi/libsas/Makefile b/drivers/scsi/libsas/Makefile
index 60d6e93..1ad1323 100644
--- a/drivers/scsi/libsas/Makefile
+++ b/drivers/scsi/libsas/Makefile
@@ -33,6 +33,7 @@
 		sas_dump.o     \
 		sas_discover.o \
 		sas_expander.o \
-		sas_scsi_host.o
+		sas_scsi_host.o \
+		sas_task.o
 libsas-$(CONFIG_SCSI_SAS_ATA) +=	sas_ata.o
 libsas-$(CONFIG_SCSI_SAS_HOST_SMP) +=	sas_host_smp.o
\ No newline at end of file