[llvm] [llvm-objdump][AVR] Detect AVR architecture from ELF flags for disassembling (PR #180468)

[Ruoyu Qiu via llvm-commits]

cabbaken wrote:

> Retain the original title, adding 'Reland' if necessary. Move the details, such as 'resolving cyclic dependencies,' to the PR body to keep the title concise.

Thanks for your advice! I've revised the PR title.

https://github.com/llvm/llvm-project/pull/180468