nb/intel/gm45: Get rid of device_t

Use of `device_t` has been abandoned in ramstage.

Change-Id: If064a4027265e8fc2ea919d9742a554abf29b8db
Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr>
Reviewed-on: https://review.coreboot.org/23667
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Felix Held <felix-coreboot@felixheld.de>
diff --git a/src/northbridge/intel/gm45/gma.c b/src/northbridge/intel/gm45/gma.c
index bdad49b..237071c 100644
--- a/src/northbridge/intel/gm45/gma.c
+++ b/src/northbridge/intel/gm45/gma.c
@@ -778,7 +778,7 @@
 	intel_gma_restore_opregion();
 }
 
-static void gma_set_subsystem(device_t dev, unsigned vendor, unsigned device)
+static void gma_set_subsystem(struct device *dev, unsigned vendor, unsigned device)
 {
 	if (!vendor || !device) {
 		pci_write_config32(dev, PCI_SUBSYSTEM_VENDOR_ID,
@@ -793,7 +793,7 @@
 const struct i915_gpu_controller_info *
 intel_gma_get_controller_info(void)
 {
-	device_t dev = dev_find_slot(0, PCI_DEVFN(0x2,0));
+	struct device *dev = dev_find_slot(0, PCI_DEVFN(0x2,0));
 	if (!dev) {
 		return NULL;
 	}
@@ -801,7 +801,7 @@
 	return &chip->gfx;
 }
 
-static void gma_ssdt(device_t device)
+static void gma_ssdt(struct device *device)
 {
 	const struct i915_gpu_controller_info *gfx = intel_gma_get_controller_info();
 	if (!gfx) {