[llvm] [SandboxVec][SeedCollector] Change vector bit width calculation (PR #194090)

[Matt Arsenault via llvm-commits]

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@@ -48,15 +48,17 @@ SeedCollection::SeedCollection(StringRef Pipeline, StringRef AuxArg)
   }
 }
 
+static unsigned getAddressSpace(Instruction *I) {
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arsenm wrote:

```suggestion
static unsigned getAddressSpace(const Instruction *I) {
```

https://github.com/llvm/llvm-project/pull/194090