[llvm-branch-commits] [NFC][ELF][AArch64] Don't duplicate addRelativeReloc call for MTE globals (PR #171181)

[Jessica Clarke via llvm-branch-commits]

https://github.com/jrtc27 created https://github.com/llvm/llvm-project/pull/171181

This call to addRelativeReloc is the same as the one at the end of the
function, so skip the relrDyn code for this case and add the special
out-of-bounds handling code to the end of the function. This makes it
obvious where MTE globals differ in behaviour rather than having to
compare the two different implementations.