VBoot Reference: Add version checking to for preventing rollbacks.

src/platform/vboot_reference/common/tlcl_stub.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.
+ *
+ * Stub implementations of TPM Lite Library.
+ */
+
+#include <tss/tcs.h>
+
+void TlclLibinit(void) { return; }
+void TlclStartup(void) { return; }
+void TlclSelftestfull(void) { return; }
+void TlclDefineSpace(uint32_t index, uint32_t perm, uint32_t size) { return; }
+uint32_t TlclWrite(uint32_t index, uint8_t *data, uint32_t length) {
+  return TPM_SUCCESS;
+}
+uint32_t TlclRead(uint32_t index, uint8_t *data, uint32_t length) {
+  return TPM_SUCCESS;
+}
+void TlclWriteLock(uint32_t index) { return; }
+void TlclReadLock(uint32_t index) { return; }
+void TlclAssertPhysicalPresence(void) { return; }
+void TlclSetNvLocked(void) { return; }
+int TlclIsOwned(void) { return 0; }
+void TlclForceClear(void) { return; }
+void TlclPhysicalEnable(void) { return; }
+int TlclPhysicalSetDeactivated(uint8_t flag) { return TPM_SUCCESS; }
+int TlclGetFlags(uint8_t* disable, uint8_t* deactivated) { return TPM_SUCCESS; }