soc/intel/xeon_sp/cpx: add cpu entries in ssdt

Signed-off-by: Jonathan Zhang <jonzhang@fb.com>
Signed-off-by: Reddy Chagam <anjaneya.chagam@intel.com>
Change-Id: I4d057a7c385ca563bfcc7ad44f651ad1f8ca003c
Reviewed-on: https://review.coreboot.org/c/coreboot/+/42059
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Philipp Deppenwiese <zaolin.daisuki@gmail.com>
diff --git a/src/soc/intel/xeon_sp/cpx/chip.c b/src/soc/intel/xeon_sp/cpx/chip.c
index cded072..c2d448c 100644
--- a/src/soc/intel/xeon_sp/cpx/chip.c
+++ b/src/soc/intel/xeon_sp/cpx/chip.c
@@ -504,6 +504,7 @@
 	.read_resources = noop_read_resources,
 	.set_resources = noop_set_resources,
 	.init = cpx_init_cpus,
+	.acpi_fill_ssdt = generate_cpu_entries,
 };
 
 /* Attach IIO stack bus numbers with dummy device to PCI DOMAIN 0000 device */