[LUCI] Quick fix to migration console.

Bug:790520
Change-Id: If94cb97263cd69486ce25a63078739338d46ff5e

TBR=hzl@chromium.org
TBR=jbudorick@chromium.org

Change-Id: If94cb97263cd69486ce25a63078739338d46ff5e
Reviewed-on: https://chromium-review.googlesource.com/1026254
Commit-Queue: Zhiling Huang <hzl@chromium.org>
Reviewed-by: Zhiling Huang <hzl@chromium.org>
Cr-Commit-Position: refs/heads/master@{#553203}

infra/config/global/luci-milo.cfg

@@ -1705,13 +1705,13 @@ consoles: {
   }
   builders: {
     name: "buildbucket/luci.chromium.ci/Android arm Builder (dbg)"
-    category: "android|builder|arm|debug|64"
-    short_name: "bb"
+    category: "android|builder|arm|debug|32"
+    short_name: "ci"
   }
   builders: {
     name: "buildbot/chromium.android/Android arm Builder (dbg)"
-    category: "android|builder|arm|debug|64"
-    short_name: "ci"
+    category: "android|builder|arm|debug|32"
+    short_name: "bb"
   }
 }