[llvm] [clang] Remove experimental from Vector Crypto extensions (PR #69000)

[Eric Biggers via cfe-commits]

================
@@ -141,6 +141,23 @@ on support follow.
      ``Zve64f``       Supported
      ``Zve64d``       Supported
      ``Zvfh``         Supported
+     ``Zvbb``         Supported
+     ``Zvbc``         Supported
+     ``Zvkb``         Supported
+     ``Zvkg``         Supported
+     ``Zvkn``         Supported
+     ``Zvkn``         Supported
----------------
ebiggers wrote:

Zvkn is in this list twice

https://github.com/llvm/llvm-project/pull/69000