Revert "Change FMAP search stride from 4-byte to 64-byte."

This reverts commit 92951c813dc416c24d8a9eda39d037f46baeb077.

BUG=chromium-os:33963,
TEST=None
BRANCH=None

Change-Id: I186432ab4cdb91495f81a1574863fada28f59603
Reviewed-on: https://gerrit.chromium.org/gerrit/31690
Commit-Ready: Yung-Chieh Lo <yjlou@chromium.org>
Reviewed-by: Yung-Chieh Lo <yjlou@chromium.org>
Tested-by: Yung-Chieh Lo <yjlou@chromium.org>
diff --git a/host/include/fmap.h b/host/include/fmap.h
index e8ab999..7da2dd9 100644
--- a/host/include/fmap.h
+++ b/host/include/fmap.h
@@ -14,7 +14,7 @@
 #define FMAP_NAMELEN 32
 #define FMAP_SIGNATURE "__FMAP__"
 #define FMAP_SIGNATURE_SIZE 8
-#define FMAP_SEARCH_STRIDE 64
+#define FMAP_SEARCH_STRIDE 4
 typedef struct _FmapHeader {
   char        fmap_signature[FMAP_SIGNATURE_SIZE]; /* avoiding endian issues */
   uint8_t     fmap_ver_major;