src/arch/x86: Add automatic type41 entry creation

SMBIOS Type41 Entries will be automatically created. Type 41 entries
define attributes of the onboard devices.

Change-Id: Idcb3532a5c05666d6613af4f303df85f4f1f6e97
Signed-off-by: Christian Walter <christian.walter@9elements.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/32910
Reviewed-by: Philipp Deppenwiese <zaolin.daisuki@gmail.com>
Reviewed-by: Patrick Rudolph <siro@das-labor.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>

src/include/smbios.h

@@ -756,6 +756,8 @@ typedef enum {
 	SMBIOS_DEVICE_TYPE_SAS,
 } smbios_onboard_device_type;
 
+#define SMBIOS_DEVICE_TYPE_COUNT 10
+
 struct smbios_type41 {
 	u8 type;
 	u8 length;