[llvm] [PAC][ELF] Place AUTH constants in .data.rel.ro for position dependent code (PR #150418)

[Daniil Kovalev via llvm-commits]

kovdan01 wrote:

This fixes the issue reported by @pcc in pauth channel in Discord: https://discord.com/channels/636084430946959380/1133112394701348895/1395957067847700630

https://github.com/llvm/llvm-project/pull/150418