IB/isert: Simplify signature cap check

Use if/else clause instead of "condition ? val1 : val2" to make the code
cleaner and simpler.

Link: https://lore.kernel.org/r/20210110111903.486681-3-mgurtovoy@nvidia.comReviewed-by: Israel Rukshin <israelr@nvidia.com>
Signed-off-by: Max Gurtovoy <mgurtovoy@nvidia.com>
Acked-by: Sagi Grimberg <sagi@grimberg.me>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>

drivers/infiniband/ulp/isert/ib_isert.c

@@ -230,8 +230,10 @@ isert_create_device_ib_res(struct isert_device *device)
 	}
 
 	/* Check signature cap */
-	device->pi_capable = ib_dev->attrs.device_cap_flags &
-			     IB_DEVICE_INTEGRITY_HANDOVER ? true : false;
+	if (ib_dev->attrs.device_cap_flags & IB_DEVICE_INTEGRITY_HANDOVER)
+		device->pi_capable = true;
+	else
+		device->pi_capable = false;
 
 	return 0;
 }