[llvm] [AArch64][GlobalISel] Adopt some Ld* patterns to reduce codegen regressions (PR #135492)

[David Green via llvm-commits]

davemgreen wrote:

I think I would remove OnlyGISel if it will not otherwise affect anything. Does it alter SDAG to have them enabled?

https://github.com/llvm/llvm-project/pull/135492