Update gold to build #2098274.

Built from toolchain/binutils 5b0b7aca66a30692402df9a9909ebbad7acac259

Contains Yiran's patch to work around overly aggressive hidden symbol
warning.

Bug: http://b/21502954
Change-Id: Ia2f7cd656cdca6ae18a8bb86842e1369cefa9bb8
(cherry picked from commit c1a39ddef8496eb84c49883423a220e7dfe80d06)
diff --git a/bin/x86_64-linux-android-ld.gold b/bin/x86_64-linux-android-ld.gold
index 9e50246..6e9d59d 100755
--- a/bin/x86_64-linux-android-ld.gold
+++ b/bin/x86_64-linux-android-ld.gold
Binary files differ