[clang] [HIP] Don't add -fvisibility=hidden for SPIR-V compilation flow (PR #184821)

[Dmitry Sidorov via cfe-commits]

MrSidims wrote:

> Then the backend should be fixed

The backend will be fixed ASAP. I challenge the necessity to put hidden visibility in a compilation flow by default as the presumably hidden symbols will actually be visible. When/if we will have a concept visibility in SPIR-V this patch can be reverted.

https://github.com/llvm/llvm-project/pull/184821