Disable failing v8.runtime_stats.top_25/https://www.google.de/search?q=v8 on Linux

NOTRY=true
TBR=nednguyen@google.com

Bug: 829504
Change-Id: Id45cfb893bde4cced66a95ee2a1b1e73a9d430ec
Reviewed-on: https://chromium-review.googlesource.com/998622Reviewed-by: Annie Sullivan <sullivan@chromium.org>
Commit-Queue: Annie Sullivan <sullivan@chromium.org>
Cr-Commit-Position: refs/heads/master@{#548539}

tools/perf/expectations.config

@@ -408,6 +408,7 @@ crbug.com/812618 [ Android_Webview ] v8.detached_context_age_in_gc/Docs_(1_open_
 # Benchmark: v8.runtime_stats.top_25
 crbug.com/664318 [ Android ] v8.runtime_stats.top_25/* [ Skip ]
 crbug.com/664318 [ Win ] v8.runtime_stats.top_25/* [ Skip ]
+crbug.com/829504 [ Linux ] v8.runtime_stats.top_25/https://www.google.de/search?q=v8 [ Skip ]
 
 # Benchmark: wasm
 [ Android_One ] wasm/WasmSpaceBuggy [ Skip ]