Only one change to the V8 gyp file to fix problem for gcc 4.4.

BUG=none
TEST=none
Review URL: http://codereview.chromium.org/220005

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@26918 0039d316-1c4b-4281-b951-d872f2087c98