ahci: ahci_host_activate: kill IRQF_SHARED

MSI messages are per-device, so there will never be another "shared"
device in the interrupt chain.

Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
diff --git a/drivers/ata/libahci.c b/drivers/ata/libahci.c
index 2fa551a..67f97e3 100644
--- a/drivers/ata/libahci.c
+++ b/drivers/ata/libahci.c
@@ -2493,7 +2493,7 @@
 
 		rc = devm_request_threaded_irq(host->dev, irq + i,
 					       ahci_multi_irqs_intr,
-					       ahci_port_thread_fn, IRQF_SHARED,
+					       ahci_port_thread_fn, 0,
 					       pp->irq_desc, host->ports[i]);
 		if (rc)
 			goto out_free_irqs;