[clang-format][doc] Update the Linux kernel coding style URL

(cherry picked from commit 8902f12)

Author: owenca

clang/docs/ClangFormatStyleOptions.rst

@@ -5652,7 +5652,7 @@ Examples
 ========
 
 A style similar to the `Linux Kernel style
-<https://www.kernel.org/doc/Documentation/CodingStyle>`_:
+<https://www.kernel.org/doc/html/latest/process/coding-style.html>`_:
 
 .. code-block:: yaml