[llvm] [llvm][MC][ARM] Don't autoresolve fixups (PR #76574)

[Eleanor Bonnici via llvm-commits]

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+@ RUN: not llvm-mc -filetype=obj -o /dev/null %s 2>&1 -triple=armv8.2a-eabi     | FileCheck %s
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eleanor-arm wrote:

As for the "unrelated details", I think you're referring to the checks of the addend values? And/or the symbol+imm checks?  We've done something similar in all the tests related to pcrel relocations. It was recommended to me as a good extra check by @smithp35 .  Here I just added a few more because we had a discussion on another review about whether an issue could be related to a pcrel instruction referring to a symbol before it rather than after. It wasn't but still I covered both cases from then on as to make it clearer. 

https://github.com/llvm/llvm-project/pull/76574