[llvm] [GISel][Inlineasm] Support inlineasm i constraint for symbols (PR #170094)

[via llvm-commits]

KRM7 wrote:

> Should this do the same thing for 's' too (without handling 'n')?

Yep, I've added the logic for the 's' constraint too.

https://github.com/llvm/llvm-project/pull/170094