[PATCH] [ARM] Remove references to redundant cortex-a9-mp CPU

[Renato Golin]

I can't remember now, does that mean that "-mcpu=cortex-a9-mp" will work and mean "arm7tdmi" or will it fail with "unknown CPU"? I'm actually surprised that we had no tests for it. :)

If it fails, LGTM. If not, the odd folks using it may have a nasty selection of compile/link/run-time errors.

cheers,
--renato

http://reviews.llvm.org/D6118