[lld] Fix build failure of lld/ELF/OutputSections.cpp (PR #70368)

[Fangrui Song via llvm-commits]

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@@ -22,6 +22,8 @@
 #include "llvm/Support/Path.h"
 #include "llvm/Support/TimeProfiler.h"
 #if LLVM_ENABLE_ZLIB
+// Avoid introducing max as a macro from Windows headers.
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MaskRay wrote:

`// Avoid introducing max as a macro from windows.h on Windows.`

https://github.com/llvm/llvm-project/pull/70368