soc/intel/meteorlake: Exclude deprecated upd from FSP2.4 builds

EnableMultiPhaseSiliconInit upd is deprecated and has been
removed starting with v2.4 of FSP specification. Multi-phase
silicon initialization is mandatory for all FSP implementations
compliant to v2.4.

The following modifications are made:
- In fsp_params.c and silicon_init.c EnableMultiPhaseSiliconInit
  update is guarded so that it will get included only if FSP2.4
  is not selected.

BUG=b:329034258
TEST=Verified x86_32 and x86_64 builds on Meteor Lake board (Rex)

Change-Id: Icdbf3bacc0a05975fc941b264fd400d74f506fce
Signed-off-by: Appukuttan V K <appukuttan.vk@intel.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/82699
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Subrata Banik <subratabanik@google.com>
Reviewed-by: Dinesh Gehlot <digehlot@google.com>
Reviewed-by: Kapil Porwal <kapilporwal@google.com>

src/drivers/intel/fsp2_0/silicon_init.c

@@ -77,7 +77,7 @@ bool fsp_is_multi_phase_init_enabled(void)
 
 static void fsp_fill_common_arch_params(FSPS_UPD *supd)
 {
-#if CONFIG(FSPS_HAS_ARCH_UPD)
+#if (CONFIG(FSPS_HAS_ARCH_UPD) && !CONFIG(PLATFORM_USES_FSP2_4))
 	FSPS_ARCHx_UPD *s_arch_cfg = &supd->FspsArchUpd;
 	s_arch_cfg->EnableMultiPhaseSiliconInit = fsp_is_multi_phase_init_enabled();
 #endif

src/soc/intel/meteorlake/fsp_params.c

@@ -705,10 +705,13 @@ static void fill_fsps_irq_params(FSP_S_CONFIG *s_cfg,
 
 static void arch_silicon_init_params(FSPS_ARCHx_UPD *s_arch_cfg)
 {
+
+#if !CONFIG(PLATFORM_USES_FSP2_4)
 	/*
 	 * EnableMultiPhaseSiliconInit for running MultiPhaseSiInit
 	 */
 	s_arch_cfg->EnableMultiPhaseSiliconInit = 1;
+#endif
 
 	/* Assign FspEventHandler arch Upd to use coreboot debug event handler */
 	if (CONFIG(FSP_USES_CB_DEBUG_EVENT_HANDLER) && CONFIG(CONSOLE_SERIAL) &&