[ARM] remove FIXMEs and add vcmp MC test

Minor cleanup in ARMInstrVFP.td: removed some FIXMEs and added a MC test for
vcmp that was actually missing.

Differential Revision: https://reviews.llvm.org/D30745


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@297376 91177308-0d34-0410-b5e6-96231b3b80d8
2 files changed