mb/{google, intel}: Make use of `cpu/intel/cpu_ids.h'

Remove inclusion of mp_init.h for getting CPUIDs and use dedicated
cpu_ids.h file in SoC directory.

Change-Id: I411f4f2c237a9e2d39038ee30f2957698ee053bd
Signed-off-by: Subrata Banik <subrata.banik@intel.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/56412
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: EricR Lai <ericr_lai@compal.corp-partner.google.com>
diff --git a/src/mainboard/google/poppy/variants/nami/mainboard.c b/src/mainboard/google/poppy/variants/nami/mainboard.c
index 1387716..a29b9f3 100644
--- a/src/mainboard/google/poppy/variants/nami/mainboard.c
+++ b/src/mainboard/google/poppy/variants/nami/mainboard.c
@@ -6,10 +6,10 @@
 #include <cbfs.h>
 #include <chip.h>
 #include <console/console.h>
+#include <cpu/intel/cpu_ids.h>
 #include <device/device.h>
 #include <drivers/intel/gma/opregion.h>
 #include <ec/google/chromeec/ec.h>
-#include <intelblocks/mp_init.h>
 #include <intelblocks/power_limit.h>
 #include <smbios.h>
 #include <soc/ramstage.h>