Update V8 DEPS.

Rolling v8/build: https://chromium.googlesource.com/chromium/src/build/+log/0312f98..54fde1e

Rolling v8/third_party/catapult: https://chromium.googlesource.com/external/github.com/catapult-project/catapult/+log/32a3f0b..e6ad063

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

Change-Id: I2c9f167618d17546e4df4abbed2da0d428226868
Reviewed-on: https://chromium-review.googlesource.com/520922Reviewed-by: v8 autoroll <v8-autoroll@chromium.org>
Commit-Queue: v8 autoroll <v8-autoroll@chromium.org>
Cr-Commit-Position: refs/heads/master@{#45649}

DEPS

@@ -8,7 +8,7 @@ vars = {
 
 deps = {
   "v8/build":
-    Var("chromium_url") + "/chromium/src/build.git" + "@" + "0312f982ba131227524fc667ff1b5999524394ec",
+    Var("chromium_url") + "/chromium/src/build.git" + "@" + "54fde1e4fec73ba420df57bf88edf10aba91b42f",
   "v8/tools/gyp":
     Var("chromium_url") + "/external/gyp.git" + "@" + "eb296f67da078ec01f5e3a9ea9cdc6d26d680161",
   "v8/third_party/icu":
@@ -48,7 +48,7 @@ deps_os = {
     "v8/third_party/android_tools":
       Var("chromium_url") + "/android_tools.git" + "@" + "cb6bc21107001e2f2eeee2707b482b2b755baf51",
     "v8/third_party/catapult":
-      Var('chromium_url') + "/external/github.com/catapult-project/catapult.git" + "@" + "32a3f0b8f49bb6a3e5c7f158ff7aea5584843294",
+      Var('chromium_url') + "/external/github.com/catapult-project/catapult.git" + "@" + "e6ad06342efb08256f35c2605ac9c3be87a3e770",
   },
 }