soc/intel/icelake: Make CpuMpPpi implementation default for ICL

TEST=Could able to build and boot ICL DE system

Change-Id: Icd71ec99f06434896c73cff5a52cd3a5ad6ce5f3
Signed-off-by: Subrata Banik <subrata.banik@intel.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/36839
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>

src/soc/intel/icelake/Kconfig

@@ -60,6 +60,7 @@ config CPU_SPECIFIC_OPTIONS
 	select UDK_2017_BINDING
 	select DISPLAY_FSP_VERSION_INFO
 	select HECI_DISABLE_USING_SMM
+	select USE_INTEL_FSP_TO_CALL_COREBOOT_PUBLISH_MP_PPI
 
 config DCACHE_RAM_BASE
 	default 0xfef00000