Fix KeyBlockVerify() to take an explicit param for whether to use hash only.

Fix VerifyMemberInside().

BUG=chrome-os-partner:703
TEST=make && make runtests

Review URL: http://codereview.chromium.org/3126013
diff --git a/utility/vbutil_kernel.c b/utility/vbutil_kernel.c
index eeae96e..763480e 100644
--- a/utility/vbutil_kernel.c
+++ b/utility/vbutil_kernel.c
@@ -641,7 +641,8 @@
 
   /* Verify key block */
   key_block = bp->key_block;
-  if (0 != KeyBlockVerify(key_block, bp->blob_size, sign_key)) {
+  if (0 != KeyBlockVerify(key_block, bp->blob_size, sign_key,
+                          (sign_key ? 0 : 1))) {
     error("Error verifying key block.\n");
     goto verify_exit;
   }