Fix 'Optimizations' typo in gyp file.
Fix 'Optimizations' typo in gyp file.

BUG=http://code.google.com/p/v8/issues/detail?id=998
Review URL: http://codereview.chromium.org/5970001

git-svn-id: b158db1e4b4ab85d4c9e510fdef4b1e8c614b15b@6059 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

UniversalFuture/moosh,UniversalFuture/moosh,UniversalFuture/moosh,UniversalFuture/moosh