ata: ahci-pci: Use scsi_ops to initialize ops

Without this fix, scsi-scan will cause a synchronous abort
when accessing ops->scan.

Signed-off-by: Masami Hiramatsu <masami.hiramatsu@linaro.org>
Reviewed-by: Simon Glass <sjg@chromium.org>
diff --git a/drivers/ata/ahci-pci.c b/drivers/ata/ahci-pci.c
index 11ec98b..b1d231e 100644
--- a/drivers/ata/ahci-pci.c
+++ b/drivers/ata/ahci-pci.c
@@ -5,6 +5,7 @@
 
 #include <common.h>
 #include <ahci.h>
+#include <scsi.h>
 #include <dm.h>
 #include <pci.h>
 
@@ -28,6 +29,7 @@
 U_BOOT_DRIVER(ahci_pci) = {
 	.name	= "ahci_pci",
 	.id	= UCLASS_AHCI,
+	.ops	= &scsi_ops,
 	.of_match = ahci_pci_ids,
 	.bind	= ahci_pci_bind,
 	.probe = ahci_pci_probe,