Fix compilation failure of mocked_tlcl.c

BUG=none
TEST=none

Change-Id: I97d1c95eda62439e4f3ae23bf4f39bb4451acea7
Reviewed-on: http://gerrit.chromium.org/gerrit/2522
Tested-by: Takayoshi Kochi <kochi@chromium.org>
Reviewed-by: Takayoshi Kochi <kochi@chromium.org>

firmware/lib/tpm_lite/mocked_tlcl.c

@@ -5,6 +5,7 @@
 
 #include "tlcl.h"
 #include "tlcl_internal.h"
+#include "utility.h"
 
 uint32_t TlclLibInit(void) {
   return TlclStubInit();