[PATCH] Increase timeout value for ppc64 sanitizer buildbots

[Bill Seurer]

This worked and the Power big endian sanitizer now runs to completion.  There is an issue open to fix the underlying performance problems (https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63927) and when that is fixed this change can be probably be undone.

http://llvm.org/viewvc/llvm-project?rev=230234&view=rev


http://reviews.llvm.org/D7761

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