[clang] [llvm] [RISCV] Support Zama16b1p0 (PR #88474)

[Jesse Huang via cfe-commits]

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@@ -119,6 +119,7 @@ on support follow.
      ``Za128rs``       Supported (`See note <#riscv-profiles-extensions-note>`__)
      ``Za64rs``        Supported (`See note <#riscv-profiles-extensions-note>`__)
      ``Zacas``         Supported (`See note <#riscv-zacas-note>`__)
+     ``Zama16b``       Supported
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jaidTw wrote:

Am I supposed to add the extension name into the list in `riscv-profiles-extensions-note`?
Seems like not a extensions are listes there

https://github.com/llvm/llvm-project/pull/88474