[compiler-rt] [FMV][compiler-rt] Fix cpu features initialization. (PR #95149)

[Jon Roelofs via llvm-commits]

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@@ -52,23 +45,20 @@ static void __init_cpu_features_constructor(unsigned long hwcap,
     setCPUFeature(FEAT_FCMA);
   if (hwcap & HWCAP_SB)
     setCPUFeature(FEAT_SB);
-  if (hwcap & HWCAP_SSBS)
+  if (hwcap & HWCAP_SSBS) {
+    setCPUFeature(FEAT_SSBS);
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jroelofs wrote:

Does SSBS2 imply SSBS? If so, I think I need to add `CHECK_BIT(CAP_BIT_FEAT_SSBS, FEAT_SSBS);` to `apple.inc`

https://github.com/llvm/llvm-project/pull/95149