Add chromium perf FYI builder to mb

BUG=639530

Review-Url: https://codereview.chromium.org/2394623003
Cr-Commit-Position: refs/heads/master@{#423003}

tools/mb/mb_config.pyl

@@ -305,6 +305,7 @@
     },
 
     'chromium.perf.fyi': {
+      'Android Builder FYI': 'official_goma_minimal_symbols_android',
       'Win Builder FYI': 'official_goma',
       'Win Clang Builder': 'official_goma_minimal_symbols_clang',
     },