drivers/intel/fsp2_0/header_util: Convert UPD headers

Convert the FSP 2.0 UPD headers from typedef to struct:
* FSP_UPD_HEADER
* FSPM_ARCH_UPD

TEST=Build and run on Galileo Gen2

Change-Id: Iab241ea07c955e95ff988a4a30103d2a112179b6
Signed-off-by: Lee Leahy <leroy.p.leahy@intel.com>
Reviewed-on: https://review.coreboot.org/15856
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@chromium.org>

src/drivers/intel/fsp2_0/header_util/fspupdvpd.spatch

@@ -38,6 +38,17 @@ i;
 @@
 coccinelle.i = t.rstrip('_t')
 
+@ convert_FSP_UPD_HEADER @
+typedef FSP_UPD_HEADER;
+@@
+- FSP_UPD_HEADER
++ struct FSP_UPD_HEADER
+
+@ convert_FSPM_ARCH_UPD @
+typedef FSPM_ARCH_UPD;
+@@
+- FSPM_ARCH_UPD
++ struct FSPM_ARCH_UPD
 
 @ convert_named_struct_decls @
 type named_struct.t;