[clang] [AArch64] Add option -msve-streaming-vector-bits= . (PR #144611)

[Sander de Smalen via cfe-commits]

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@@ -820,16 +820,23 @@ AArch64TargetInfo::getTargetBuiltins() const {
 
 std::optional<std::pair<unsigned, unsigned>>
 AArch64TargetInfo::getVScaleRange(const LangOptions &LangOpts,
-                                  bool IsArmStreamingFunction,
+                                  ArmStreamingKind IsArmStreamingFunction,
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sdesmalen-arm wrote:

nit:
```suggestion
                                  ArmStreamingKind Mode,
```
(here and in other places)

https://github.com/llvm/llvm-project/pull/144611