[llvm] [RISCV] Enable encodng conflict framework for RISCV target. (PR #97287)

[Jessica Clarke via llvm-commits]

jrtc27 wrote:

Also: s/encodng/encoding/ in the subject, "for RISCV target" is redundant given the "[RISCV]" prefix and it should mention CSRs somewhere. As for the body, s/frameowrk/framework/, and "for RISCV target" needs a "the".

https://github.com/llvm/llvm-project/pull/97287