[compiler-rt] Check if LLD is built when checking if lto_supported (PR #92752)

[Vitaly Buka via llvm-commits]

vitalybuka wrote:

Sure.
However, please, if it breaks bots, bring to my attention those, email, or even better Discord.
The bots are configured in such a way that you are on the blame list, and they will send messages from the bot to you, but not to me.


https://github.com/llvm/llvm-project/pull/92752