[llvm] [RISCV] Make Zicclsm imply unaligned scalar and vector access (PR #108551)

[Craig Topper via llvm-commits]

topperc wrote:

Zicclsm makes no guarantees about performance of unaligned access. It only says they won't trap. They can be emulated in the kernel and take thousands of cycles.

https://github.com/llvm/llvm-project/pull/108551