[clang] [llvm] [AArch64] Remove Automatic Enablement of FEAT_F32MM (PR #85203)

[Jonathan Thackray via cfe-commits]

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@@ -74,6 +74,7 @@ Changes to the AMDGPU Backend
 
 Changes to the ARM Backend
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+* FEAT_F32MM is no longer activated by default when using `+sve` on v8.6-A or greater. The feature is still availble and can be using by adding `+f32mm` to the command line options.
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jthackray wrote:

Nit: typo, s/availble/available/

https://github.com/llvm/llvm-project/pull/85203