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

[Min-Yih Hsu via llvm-commits]

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mshockwave wrote:

I don't think you need to put in a separated folder, put in `llvm/test/MC/M68k` should probably be fine

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