intel/broadwell: Fix refcode handling

Allow adding and executing a refcode binary.

Change-Id: I00e91a088a5695b42528e246d0ed642d988603e3
Signed-off-by: Patrick Georgi <pgeorgi@google.com>
Reviewed-on: http://review.coreboot.org/10638
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>

src/soc/intel/broadwell/refcode.c

@@ -43,7 +43,7 @@ static pei_wrapper_entry_t load_refcode_from_cache(void)
 	return (pei_wrapper_entry_t)prog_entry(&refcode);
 }
 
-static efi_wrapper_entry_t load_reference_code(void)
+static pei_wrapper_entry_t load_reference_code(void)
 {
 	struct prog prog =
 		PROG_INIT(ASSET_REFCODE, CONFIG_CBFS_PREFIX "/refcode");
@@ -69,7 +69,7 @@ static efi_wrapper_entry_t load_reference_code(void)
 	/* Cache loaded reference code. */
 	stage_cache_add(STAGE_REFCODE, &prog);
 
-	return prog_entry(&prog);
+	return (pei_wrapper_entry_t)prog_entry(&prog);
 }
 
 void broadwell_run_reference_code(void)