Make the sparc.burg file be a little more flexible and rubust in the fact of

Make the sparc.burg file be a little more flexible and rubust in the fact of
renumbering of instructions.  It is still horribly broken and grossly dependant on the number of instructions, but now it is a least a little better.

Oh yeah it also works now.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@793 91177308-0d34-0410-b5e6-96231b3b80d8