[llvm-readobj] - Fix a warning.
This addresses post review comment for D92018.
The warning was:
```
error: loop variable 'Note' is always a copy because the range of type 'iterator_range<llvm::object::ELFFile<llvm::object::ELFType<llvm::support::big, true> >::Elf_Note_Iterator>' (aka 'iterator_range<Elf_Note_Iterator_Impl<ELFType<(llvm::support::endianness)0U, true> > >') does not return a reference [-Werror,-Wrange-loop-analysis]
for (const typename ELFT::Note &Note : Obj.notes(S, Err))
```
diff --git a/llvm/tools/llvm-readobj/ELFDumper.cpp b/llvm/tools/llvm-readobj/ELFDumper.cpp
index 2fac1c9..656b992 100644
--- a/llvm/tools/llvm-readobj/ELFDumper.cpp
+++ b/llvm/tools/llvm-readobj/ELFDumper.cpp
@@ -5559,7 +5559,7 @@
StartNotesFn(expectedToOptional(Obj.getSectionName(S)), S.sh_offset,
S.sh_size);
Error Err = Error::success();
- for (const typename ELFT::Note &Note : Obj.notes(S, Err))
+ for (const typename ELFT::Note Note : Obj.notes(S, Err))
ProcessNoteFn(Note);
if (Err)
Dumper.reportUniqueWarning(
