soc/intel/xeon_sp: Move SMBIOS type 4 override functions from mainboard

to soc

Move SMBIOS type 4 override functions from mainboard to soc so that all
xeon family cpus share same functions without implementing again.

Tested=On OCP Deltalake, dmidecode -t 4 shows expected info.

Signed-off-by: JingleHsuWiwynn <jingle_hsu@wiwynn.com>
Change-Id: I17df8de67bc2f5e89ea04da36efb2480a7e73174
Reviewed-on: https://review.coreboot.org/c/coreboot/+/69363
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Jonathan Zhang <jonzhang@fb.com>
Reviewed-by: Martin Roth <martin.roth@amd.corp-partner.google.com>

src/soc/intel/xeon_sp/ramstage.c

@@ -1,5 +1,6 @@
 /* SPDX-License-Identifier: GPL-2.0-only */
 
+#include <cpu/cpu.h>
 #include <smbios.h>
 
 unsigned int smbios_cache_error_correction_type(u8 level)
@@ -24,3 +25,13 @@ unsigned int smbios_cache_conf_operation_mode(u8 level)
 		return SMBIOS_CACHE_OP_MODE_UNKNOWN;
 	}
 }
+
+unsigned int smbios_processor_family(struct cpuid_result res)
+{
+	return SMBIOS_PROCESSOR_FAMILY_XEON;
+}
+
+unsigned int smbios_processor_characteristics(void)
+{
+	return PROCESSOR_64BIT_CAPABLE|PROCESSOR_MULTI_CORE|PROCESSOR_POWER_PERFORMANCE_CONTROL;
+}