IB/iser: Use proper define for the commands per LUN value advertised to SCSI ML

ISER_DEF_CMD_PER_LUN was meant to be ISCSI_DEF_XMIT_CMDS_MAX, not plain 128
Signed-off-by: NRoi Dayan <roid@mellanox.com>
Signed-off-by: NOr Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: NRoland Dreier <roland@purestorage.com>

drivers/infiniband/ulp/iser/iscsi_iser.h

@@ -94,7 +94,7 @@
 
 					/* support up to 512KB in one RDMA */
 #define ISCSI_ISER_SG_TABLESIZE         (0x80000 >> SHIFT_4K)
-#define ISER_DEF_CMD_PER_LUN		128
+#define ISER_DEF_CMD_PER_LUN		ISCSI_DEF_XMIT_CMDS_MAX
 
 /* QP settings */
 /* Maximal bounds on received asynchronous PDUs */