Fix wrong format for printing TPM NV space indices.

Change-Id: Idc7bc00193425a4a2304f6fab56afcfbd1ce2f79

BUG=none
TEST=none

Review URL: http://codereview.chromium.org/3844005
diff --git a/nvtool/tpm_nv.c b/nvtool/tpm_nv.c
index 2e6c270..a5fecd2 100644
--- a/nvtool/tpm_nv.c
+++ b/nvtool/tpm_nv.c
@@ -72,7 +72,7 @@
         return FALSE;
     }
 
-    TNV_stdout("# NV Index %#08x\n", value32);
+    TNV_stdout("# NV Index %#010x\n", value32);
     cursor += sizeof(UINT32);
 
     // pcrInfoRead begin