soc/intel/baytrail: Get rid of device_t

Use of device_t has been abandoned in ramstage.

Change-Id: I8b2cfe3e2090fb8eed755e40d337c6049d8dd96e
Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr>
Reviewed-on: https://review.coreboot.org/26456
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Nico Huber <nico.h@gmx.de>

src/soc/intel/baytrail/acpi.c

@@ -443,7 +443,7 @@ static void generate_P_state_entries(int core, int cores_per_package)
 	acpigen_pop_len();
 }
 
-void generate_cpu_entries(device_t device)
+void generate_cpu_entries(struct device *device)
 {
 	int core;
 	int pcontrol_blk = get_pmbase(), plen = 6;