[llvm] RISCVAsmParser: Don't treat operands with relocation specifier as parse-time constants (PR #133377)

[Sam Elliott via llvm-commits]

lenary wrote:

I'm happy with the code but LLD seems pretty unhappy. Is the problem in the LLD tests one that GNU LD will also have (doesn't like HI/LO relocations against local symbols)

https://github.com/llvm/llvm-project/pull/133377