[lld] [RISC-V][LLD] Add Support for RISC-V TLSDESC Relocations (PR #66916)

[Paul Kirth via llvm-commits]

ilovepi wrote:

Note that only the LLD commit should be reviewed here. The LLVM changes have been submitted separately in https://github.com/llvm/llvm-project/pull/66915.

https://github.com/llvm/llvm-project/pull/66916