src: Use of device_t is deprecated

Change-Id: I9cebfc5c77187bd81094031c43ff6df094908417
Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr>
Reviewed-on: https://review.coreboot.org/27010
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Patrick Georgi <pgeorgi@google.com>

src/soc/intel/cannonlake/smmrelocate.c

@@ -255,7 +255,7 @@ static void setup_ied_area(struct smm_relocation_params *params)
 void smm_info(uintptr_t *perm_smbase, size_t *perm_smsize,
 				size_t *smm_save_state_size)
 {
-	device_t dev = SA_DEV_ROOT;
+	struct device *dev = SA_DEV_ROOT;
 
 	printk(BIOS_DEBUG, "Setting up SMI for CPU\n");