llvm-mc: Add option for prefering hex format disassembly.

Previously there was a separate mode entirely (--hdis vs.
--disassemble). It makes a bit more sense for the immediate printing
style to be a flag for --disassmeble rather than an entirely different
thing.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@210700 91177308-0d34-0410-b5e6-96231b3b80d8
4 files changed