sb/amd/amd8111: Get rid of device_t

Use of device_t has been abandoned in ramstage.

Change-Id: I143617bb1a4ab1812ec50155861ae2f75060851b
Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr>
Reviewed-on: https://review.coreboot.org/26409
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com>

src/southbridge/amd/amd8111/nic.c

@@ -63,7 +63,8 @@ static void nic_init(struct device *dev)
 	printk(BIOS_DEBUG, "Done\n");
 }
 
-static void lpci_set_subsystem(device_t dev, unsigned vendor, unsigned device)
+static void lpci_set_subsystem(struct device *dev, unsigned vendor,
+			       unsigned device)
 {
 	pci_write_config32(dev, 0xc8,
 		((device & 0xffff) << 16) | (vendor & 0xffff));