[lld] [llvm] [LoongArch] Use R_LARCH_ALIGN with section symbol (PR #84741)

[Lu Weining via llvm-commits]

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@@ -226,11 +226,8 @@ bool LoongArchAsmBackend::shouldInsertFixupForCodeAlign(
       MCFixup::create(0, Dummy, MCFixupKind(LoongArch::fixup_loongarch_align));
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SixWeining wrote:

But `llvm-mc` is used in lld's tests. If `llvm-mc` is changed, lld's test will fail (i.e. `lld/test/ELF/loongarch-relax-emit-relocs.s`).

https://github.com/llvm/llvm-project/pull/84741