soc/amd/stoneyridge/: Get rid of device_t

Use of device_t has been abandoned in ramstage.

Change-Id: I84fbc90b2a81fe5476d659716f0d6e4f0d7e1de2
Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr>
Reviewed-on: https://review.coreboot.org/26458
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Marc Jones <marc@marcjonesconsulting.com>

src/soc/amd/stoneyridge/chip.c

@@ -107,7 +107,7 @@ struct device_operations pci_domain_ops = {
 	.acpi_name	  = soc_acpi_name,
 };
 
-static void enable_dev(device_t dev)
+static void enable_dev(struct device *dev)
 {
 	/* Set the operations if it is a special bus type */
 	if (dev->path.type == DEVICE_PATH_DOMAIN)