[llvm] [ARM][TableGen][MC] Change the ARM mnemonic operands to be optional for ASM parsing (PR #83436)

[Sergei Barannikov via llvm-commits]

https://github.com/s-barannikov approved this pull request.

Generic changes look good to me. I'm not qulified to review ARM-specific changes.


https://github.com/llvm/llvm-project/pull/83436