Make vboot_reference build in MSVC command line environment.

tests/rollback_index_mock.c

Index: tests/rollback_index_mock.c
diff --git a/tests/rollback_index_mock.c b/tests/rollback_index_mock.c
index 6c629934e0f84ac3d26d250e3a46069e1f38c5e8..f12402bd57fd480a5b3cddf3363776842ed13719 100644
--- a/tests/rollback_index_mock.c
+++ b/tests/rollback_index_mock.c
@@ -8,7 +8,6 @@
 #include "rollback_index.h"
 #include "tss_constants.h"
 
-#include <stdint.h>
 #include <stdio.h>
 
 uint16_t g_firmware_key_version = 0;
@@ -16,6 +15,9 @@ uint16_t g_firmware_version = 0;
 uint16_t g_kernel_key_version = 0;
 uint16_t g_kernel_version = 0;
 
+/* disable MSVC warnings on unused arguments */
+__pragma(warning (disable: 4100))
+
 uint32_t SetupTPM(int mode, int developer_flag) {
 #ifndef NDEBUG
   debug("Rollback Index Library Mock: TPM initialized.\n");