[llvm] [RISCV] Put Large Code Model Constant Pools in .text (PR #151393)

[Eli Friedman via llvm-commits]

https://github.com/efriedma-quic commented:

I was sort of surprised to see target-independent changes here, but I guess the only target I can think of that embeds constant pools in the same section is 32-bit Arm, which doesn't use normal constant pool lowering.

https://github.com/llvm/llvm-project/pull/151393