Update V8 DEPS.

Rolling v8/build: https://chromium.googlesource.com/chromium/src/build/+log/626232b..824d0c1

TBR=machenbach@chromium.org,hablich@chromium.org,sergiyb@chromium.org

Change-Id: I87554731f13dc5bf1137816c4a6b4cb43d27bf8f
Reviewed-on: https://chromium-review.googlesource.com/742803Reviewed-by: v8 autoroll <v8-autoroll@chromium.org>
Commit-Queue: v8 autoroll <v8-autoroll@chromium.org>
Cr-Commit-Position: refs/heads/master@{#49018}

DEPS

@@ -9,7 +9,7 @@ vars = {
 
 deps = {
   'v8/build':
-    Var('chromium_url') + '/chromium/src/build.git' + '@' + '626232bb64e4acb3166a44d437cb63724591e4ae',
+    Var('chromium_url') + '/chromium/src/build.git' + '@' + '824d0c179bbeeca7991230217df4cfe4507adf85',
   'v8/tools/gyp':
     Var('chromium_url') + '/external/gyp.git' + '@' + 'd61a9397e668fa9843c4aa7da9e79460fe590bfb',
   'v8/third_party/icu':