soc/intel/xeon_sp/cpx: Use FSP repo

Some headers in vendorcode are still needed but the UPD definitions
can be taken from the FSP repo.

Change-Id: I7bb96649ecba9d313cfce50af202aabcf610680f
Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/57457
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Nico Huber <nico.h@gmx.de>

src/soc/intel/xeon_sp/cpx/Kconfig

@@ -4,11 +4,13 @@ if SOC_INTEL_COOPERLAKE_SP
 
 config SOC_SPECIFIC_OPTIONS
 	def_bool y
+	select HAVE_INTEL_FSP_REPO
 
 config FSP_HEADER_PATH
-	  string "Location of FSP headers"
-	  depends on MAINBOARD_USES_FSP2_0
-	  default "src/vendorcode/intel/fsp/fsp2_0/cooperlake_sp"
+	default "3rdparty/fsp/CedarIslandFspBinPkg/Include"
+
+config FSP_FD_PATH
+	default "3rdparty/fsp/CedarIslandFspBinPkg/Fsp.fd"
 
 config MAX_SOCKET
 	int

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

@@ -16,6 +16,7 @@ ramstage-$(CONFIG_DISPLAY_HOBS) += hob_display.c
 ramstage-$(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 += -I$(src)/vendorcode/intel/fsp/fsp2_0/cooperlake_sp
 
 CPPFLAGS_common += -include $(src)/soc/intel/xeon_sp/cpx/include/soc/fsp_upd.h