[AArch64] Fix a bug where user could not disable certain architecture features#104752

Merged

tru merged 1 commit intollvm:release/19.xfrom tmatheson-arm:default_features_fix_cherry_pick

Aug 20, 2024

+154-84

Commits on Aug 20, 2024

[AArch64] Add a check for invalid default features (llvm#104435 )

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