arch/x86/include/cpu: retype device field in cpu_device_id

Use a more specific type in preparation for using bit masks on this
field in the next patch. Since uint32_t is a typedef of unsigned int,
this won't change behavior.

Signed-off-by: Felix Held <felix-coreboot@felixheld.de>
Change-Id: Ic54f73dcd3496a5ad85291b9b9586bc740b734d5
Reviewed-on: https://review.coreboot.org/c/coreboot/+/72846
Reviewed-by: Fred Reitberger <reitbergerfred@gmail.com>
Reviewed-by: Martin Roth <martin.roth@amd.corp-partner.google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>

src/arch/x86/include/arch/cpu.h

@@ -113,7 +113,7 @@ struct device;
 
 struct cpu_device_id {
 	unsigned int vendor;
-	unsigned int device;
+	uint32_t device;
 };
 
 struct cpu_driver {