[clang][fatlto] Only run sanitzer passes in prelink pipelines
FatLTO will run the sanitizer callbaks on both the pre and post link
pipelines, meaning they will run twice. These passes usually have
a check to prevent doing the wrong thing, but that shouldn't be
relied upon, since we know these will always run as part of the
prelink pipelines under FatLTO.
Fixes #159629