src/Makefilea.am: Updated rules for restore files.

- tlsinfo.c, threadinfo.c and mtcp_restart.c should be compiled with
  -fno-stack-protector.
- mtcp_restart.c should be compiled with -O0.

git-svn-id: svn://svn.code.sf.net/p/dmtcp/code/trunk@2503 ba6dc0ae-232f-0410-883f-9ebac64fc565