[llvm] [M68k][MC] Generate some encoding tests for MOVE (PR #194269)

[Peter Mackay via llvm-commits]

petmac wrote:

> Yes! I don't think we need to permutate every single (data) registers. But every other permutations are much appreciated.

What about tests for d0, d1, d7, a0, a1, and a7/sp?

That way it tests all bits 0, all bits 1, and the bit order.

https://github.com/llvm/llvm-project/pull/194269