Fix erronoius address of crashinfo.auxv in minidump-2-core.

BUG=537
A=ajwong@chromium.org
Original review: https://breakpad.appspot.com/615002/

R=ajwong@chromium.org

Review URL: https://breakpad.appspot.com/616002

git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@1203 4c0a9323-5329-0410-9bdc-e9ce6186880e