update svn ignore lists

Ignore the following files from now on:

- none/tests/x86/x87trigOOR
- auxprogs/getoff-x86-linux
- memcheck/tests/x86/sh-mem-vec128


git-svn-id: svn://svn.valgrind.org/valgrind/trunk@14493 a5019735-40e9-0310-863c-91ae7b9d1cf9