Correct a missing RUN line in the ARM codegen test for fneg ops. We should also explicitly specify +/-neonfp.

The bug was introduced at r99570 when use of "-arm-use-neon-fp" was removed.

Differential Revision: http://reviews.llvm.org/D4846



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@215377 91177308-0d34-0410-b5e6-96231b3b80d8