[clang] [llvm] [RISCV] Add support for Ziccamoc (PR #136694)

[Pengcheng Wang via cfe-commits]

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@@ -167,6 +167,7 @@ Changes to the RISC-V Backend
 * Adds assembler support for ``.option exact``, which disables automatic compression,
   and branch and linker relaxation. This can be disabled with ``.option noexact``,
   which is also the default.
+* Support was added for the Ziccamoc which was introduced as an optional extension of the RISC-V Profiles specification.
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wangpc-pp wrote:

Align the sentence? Use `Adds support for Ziccamoc ...`.

https://github.com/llvm/llvm-project/pull/136694