soc/intel/xeon_sp/cpx: Rename FSP UPDs using CPP

coreboot expects different names for FSP UPDs so use some CPP to make
it happy.

Change-Id: I4b2c2dd6ba40cb58bc2089eb9204fd4f70b037aa
Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/57487
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-by: Nico Huber <nico.h@gmx.de>

src/soc/intel/xeon_sp/cpx/Makefile.inc

@@ -17,6 +17,8 @@ ramstage-$(CONFIG_DISPLAY_UPD_DATA) += upd_display.c
 
 CPPFLAGS_common += -I$(src)/soc/intel/xeon_sp/cpx/include -I$(src)/soc/intel/xeon_sp/cpx
 
+CPPFLAGS_common += -include $(src)/soc/intel/xeon_sp/cpx/include/soc/fsp_upd.h
+
 cpu_microcode_bins += 3rdparty/intel-microcode/intel-ucode/06-55-0b
 
 endif ## CONFIG_SOC_INTEL_COOPERLAKE_SP

src/soc/intel/xeon_sp/cpx/include/soc/fsp_upd.h

@@ -0,0 +1,11 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+
+#ifndef _FSP_UPD_H_
+#define _FSP_UPD_H_
+
+/* Rename the FSP UPD structs to what they were historically called on other platforms. */
+#define FSP_T_CONFIG FSPT_CONFIG
+#define FSP_M_CONFIG FSPM_CONFIG
+#define FSP_S_CONFIG FSPS_CONFIG
+
+#endif