sb/intel/ibexpeak: Get rid of device_t

Use of device_t has been abandoned in ramstage.

Change-Id: I7d9d0a205f9a650eb87bc8f90f2a28a5c4b2891c
Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr>
Reviewed-on: https://review.coreboot.org/26259
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Patrick Rudolph <siro@das-labor.org>
diff --git a/src/southbridge/intel/ibexpeak/usb_ehci.c b/src/southbridge/intel/ibexpeak/usb_ehci.c
index 315367d..51a6203 100644
--- a/src/southbridge/intel/ibexpeak/usb_ehci.c
+++ b/src/southbridge/intel/ibexpeak/usb_ehci.c
@@ -68,7 +68,7 @@
 	printk(BIOS_DEBUG, "done.\n");
 }
 
-static void usb_ehci_set_subsystem(device_t dev, unsigned vendor,
+static void usb_ehci_set_subsystem(struct device *dev, unsigned vendor,
 				   unsigned device)
 {
 	u8 access_cntl;