Add tpm lite to vboot reference

firmware/stub/include/tpmextras.h

Index: firmware/stub/include/tpmextras.h
diff --git a/firmware/stub/include/tpmextras.h b/firmware/stub/include/tpmextras.h
new file mode 100644
index 0000000000000000000000000000000000000000..abd5837729cabf881d17ce1ef27279479e61c566
--- /dev/null
+++ b/firmware/stub/include/tpmextras.h
@@ -0,0 +1,30 @@
+/* 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.
+ */
+
+/*
+ * TPM definitions not available in any TSS include file :-(
+ */
+
+#ifndef TPM_LITE_TPMEXTRAS_H_
+#define TPM_LITE_TPMEXTRAS_H_
+
+#include <tss/tcs.h>
+
+#define TPM_MAX_COMMAND_SIZE 4096
+#define TPM_LARGE_ENOUGH_COMMAND_SIZE 256  /* saves space in the firmware */
+
+typedef struct tdTPM_WRITE_INFO {
+  uint32_t nvIndex;
+  uint32_t offset;
+  uint32_t dataSize;
+} TPM_WRITE_INFO;
+
+#define TPM_ALL_LOCALITIES (TPM_LOC_ZERO | TPM_LOC_ONE | TPM_LOC_TWO \
+                            | TPM_LOC_THREE | TPM_LOC_FOUR)  /* 0x1f */
+
+#define TPM_ENCAUTH_SIZE 20
+#define TPM_PUBEK_SIZE 256
+
+#endif