soc/intel/alderlake: Depend RPL-guarded FSP UPDs on FSP_USE_REPO

Only the headers on Intel FSP repository have the CnviWifiCore
present. Options guarded for RPL like: DisableDynamicTccoldHandshake
or EnableFastVmode and IccLimit is also supported by all public FSPs
(except ADL-N for the handshake).

Options like LowerBasicMemTestSize and DisableSagvReorder have to be
guarded when FSP_USE_REPO is not selected, as publci FSPs do not have
these options.

Use FSP_USE_REPO instead of/in addition to SOC_INTEL_RAPTORLAKE
as dependency on the guarded UPDs to make them available for FSPs
that support them as well. Also prioritize the headers from FSP repo
over vendorcode headers if FSP_USE_REPO is selected.

Change-Id: Id5a2da463a74f4ac80dcb407a39fc45b0b6a10a8
Signed-off-by: Michał Żygowski <michal.zygowski@3mdeb.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/76418
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Michał Kopeć <michal.kopec@3mdeb.com>
diff --git a/src/soc/intel/alderlake/Kconfig b/src/soc/intel/alderlake/Kconfig
index 782ce22..3e8f767 100644
--- a/src/soc/intel/alderlake/Kconfig
+++ b/src/soc/intel/alderlake/Kconfig
@@ -397,13 +397,13 @@
 
 config FSP_HEADER_PATH
 	string "Location of FSP headers"
-	default "src/vendorcode/intel/fsp/fsp2_0/alderlake_n/" if SOC_INTEL_ALDERLAKE_PCH_N
-	default "src/vendorcode/intel/fsp/fsp2_0/raptorlake/" if SOC_INTEL_RAPTORLAKE
+	default "src/vendorcode/intel/fsp/fsp2_0/alderlake_n/" if SOC_INTEL_ALDERLAKE_PCH_N && !FSP_USE_REPO
+	default "src/vendorcode/intel/fsp/fsp2_0/raptorlake/" if SOC_INTEL_RAPTORLAKE && !FSP_USE_REPO
 	default "3rdparty/fsp/AlderLakeFspBinPkg/IoT/AlderLakeP/Include/" if SOC_INTEL_ALDERLAKE_PCH_P && FSP_TYPE_IOT
 	default "3rdparty/fsp/AlderLakeFspBinPkg/IoT/AlderLakeS/Include/" if SOC_INTEL_ALDERLAKE_PCH_S && FSP_TYPE_IOT
 	default "3rdparty/fsp/AlderLakeFspBinPkg/Client/AlderLakeP/Include/" if SOC_INTEL_ALDERLAKE_PCH_P
 	default "3rdparty/fsp/AlderLakeFspBinPkg/Client/AlderLakeS/Include/" if SOC_INTEL_ALDERLAKE_PCH_S
-	default "src/vendorcode/intel/fsp/fsp2_0/alderlake/"
+	default "src/vendorcode/intel/fsp/fsp2_0/alderlake/" if !FSP_USE_REPO
 
 config FSP_FD_PATH
 	string