soc/intel/xeon_sp: use edk2-stable202005 headers

Use edk2-stable202005 header files instead of UDK2017 header files,
since FSP uses latest EDK2 code base.

TESTED=Booted OCP Delta Lake server to OS.

Signed-off-by: Jonathan Zhang <jonzhang@fb.com>
Change-Id: I3c845bceb201d4ffdf5adbf2af9aad6d6794a19d
Reviewed-on: https://review.coreboot.org/c/coreboot/+/42240
Reviewed-by: Subrata Banik <subrata.banik@intel.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>

src/soc/intel/xeon_sp/Kconfig

@@ -68,7 +68,7 @@ config USE_FSP2_0_DRIVER
 	  def_bool y
 	  depends on MAINBOARD_USES_FSP2_0
 	  select PLATFORM_USES_FSP2_0
-	  select UDK_2017_BINDING
+	  select UDK_202005_BINDING
 	  select POSTCAR_CONSOLE
 	  select POSTCAR_STAGE