Add another missing header to remove compile time error.

src/platform/vboot_reference/utils/rollback_index.c

 /* Copyright (c) 2010 The Chromium OS Authors. All rights reserved.
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  *
  * Functions for querying, manipulating and locking rollback indices
  * stored in the TPM NVRAM.
  */
 
 #include "rollback_index.h"
 
 #include <stdint.h>
+#include <stdio.h>
 #include <tss/tcs.h>
 
 #include "tlcl.h"
 
 uint16_t g_firmware_key_version = 0;
 uint16_t g_firmware_version = 0;
 uint16_t g_kernel_key_version = 0;
 uint16_t g_kernel_version = 0;
 
 static void InitializeSpaces(void) {
   uint16_t zero = 0;
   uint32_t perm = TPM_NV_PER_WRITE_STCLEAR | TPM_NV_PER_PPWRITE;
 
-  printf("Initializing spaces\n");
+  fprintf(stderr, "Initializing spaces\n");
   TlclSetNvLocked();  /* useful only the first time */
 
   TlclDefineSpace(FIRMWARE_KEY_VERSION_NV_INDEX, perm, sizeof(uint16_t));
   TlclWrite(FIRMWARE_KEY_VERSION_NV_INDEX, (uint8_t*) &zero, sizeof(uint16_t));
 
   TlclDefineSpace(FIRMWARE_VERSION_NV_INDEX, perm, sizeof(uint16_t));
   TlclWrite(FIRMWARE_VERSION_NV_INDEX, (uint8_t*) &zero, sizeof(uint16_t));
 
   TlclDefineSpace(KERNEL_KEY_VERSION_NV_INDEX, perm, sizeof(uint16_t));
   TlclWrite(KERNEL_KEY_VERSION_NV_INDEX, (uint8_t*) &zero, sizeof(uint16_t));
@@ skipping 103 matching lines @@
       TlclWriteLock(FIRMWARE_VERSION_NV_INDEX);
       break;
     case KERNEL_KEY_VERSION:
       TlclWriteLock(KERNEL_KEY_VERSION_NV_INDEX);
       break;
     case KERNEL_VERSION:
       TlclWriteLock(KERNEL_VERSION_NV_INDEX);
       break;
   }
 }