[llvm] [AArch64] Fix return address auth in tail call epilogues (PR #189484)

[Jon Roelofs via llvm-commits]

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jroelofs wrote:

I'll counter: I think the only reasonable use of this function is in epilogues. If you insist, we could conditionalize the additional FrameDestroy's, but the else case on that condition is going to be dead code: all present call sites will want them, and hypothetical future call sites that don't want this seem unlikely to me, given what this does for pauth-lr.

https://github.com/llvm/llvm-project/pull/189484