vboot_reference: change position of 'const'

BUG=chromium:230465
BRANCH=none
TEST=USE="chrome_internal"  CFLAGS="-clang -print-cmdline"
       CXXFLAGS="-clang -print-cmdline" emerge-x86-alex vboot_reference
       passes.

Change-Id: I42466ac27b1ad7f473fc9400461b553646c04617
Reviewed-on: https://gerrit.chromium.org/gerrit/47883
Reviewed-by: Bill Richardson <wfrichar@chromium.org>
Commit-Queue: Yunlian Jiang <yunlian@chromium.org>
Tested-by: Yunlian Jiang <yunlian@chromium.org>
diff --git a/futility/futility.h b/futility/futility.h
index ed26890..c94ce73 100644
--- a/futility/futility.h
+++ b/futility/futility.h
@@ -12,9 +12,9 @@
   Here's a structure to define the commands that futility implements.
  */
 typedef struct {
-  const char const * name;
+  const char * const name;
   int (*handler)(int argc, char **argv);
-  const char const * shorthelp;
+  const char * const shorthelp;
 } __attribute__ ((aligned (16))) futil_cmd_t ; /* align for x86_64 ABI */
 
 /*