[ELF] Rewrite --symbol-ordering-file path in reproducer

The --symbol-ordering-file path was not being rewritten in the response file when
using --reproduce. This patch adds this to the list of switches that are rewritten,
so that the path is somewhere within the reproducer directory tree.

Reviewers: ruiu

Differential Revision: https://reviews.llvm.org/D37480

llvm-svn: 312626