libata: support AHCI on OCTEON platform

The OCTEON SATA controller is currently found on cn71XX devices.

Acked-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: David Daney <david.daney@cavium.com>
Signed-off-by: Vinita Gupta <vgupta@caviumnetworks.com>
Signed-off-by: Aleksey Makarov <aleksey.makarov@auriga.com>
Signed-off-by: Zubair Lutfullah Kakakhel <Zubair.Kakakhel@imgtec.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
diff --git a/drivers/ata/ahci_platform.c b/drivers/ata/ahci_platform.c
index 04975b8..4044233 100644
--- a/drivers/ata/ahci_platform.c
+++ b/drivers/ata/ahci_platform.c
@@ -76,6 +76,7 @@
 	{ .compatible = "ibm,476gtr-ahci", },
 	{ .compatible = "snps,dwc-ahci", },
 	{ .compatible = "hisilicon,hisi-ahci", },
+	{ .compatible = "cavium,octeon-7130-ahci", },
 	{},
 };
 MODULE_DEVICE_TABLE(of, ahci_of_match);