[ARM64] Add condition code operand type such that proper diagnostics can be emitted

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@208861 91177308-0d34-0410-b5e6-96231b3b80d8
[ARM64] Add/Fixup diagnostics for floating point immediates

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@208862 91177308-0d34-0410-b5e6-96231b3b80d8