[llvm] [Support][BLAKE3] Restore static on blake3_hash4_neon (PR #149046)

[via llvm-commits]

llvmbot wrote:

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Failed to cherry-pick: 1754a7d5733d5305e4ec25ef0945b39d6882bb28.patch

https://github.com/llvm/llvm-project/actions/runs/16324192481

Please manually backport the fix and push it to your github fork.  Once this is done, please create a [pull request](https://github.com/llvm/llvm-project/compare)

https://github.com/llvm/llvm-project/pull/149046