[RISCV] Add documentation that Zvbc and Zvk* are supported through intrinsics. NFC (#108577)

Author: topperc

llvm/docs/RISCVUsage.rst

@@ -208,7 +208,7 @@ on support follow.
      ``Zmmul``         Supported
      ``Ztso``          Supported
      ``Zvbb``          Supported
-     ``Zvbc``          Assembly Support
+     ``Zvbc``          Supported (`See note <#iscv-vector-crypto-note>`__)
      ``Zve32x``        (`Partially <#riscv-vlen-32-note>`__) Supported
      ``Zve32f``        (`Partially <#riscv-vlen-32-note>`__) Supported
      ``Zve64x``        Supported
@@ -219,19 +219,19 @@ on support follow.
      ``Zvfh``          Supported
      ``Zvfhmin``       Supported
      ``Zvkb``          Supported
-     ``Zvkg``          Assembly Support
-     ``Zvkn``          Assembly Support
-     ``Zvknc``         Assembly Support
-     ``Zvkned``        Assembly Support
-     ``Zvkng``         Assembly Support
-     ``Zvknha``        Assembly Support
-     ``Zvknhb``        Assembly Support
-     ``Zvks``          Assembly Support
-     ``Zvksc``         Assembly Support
-     ``Zvksed``        Assembly Support
-     ``Zvksg``         Assembly Support
-     ``Zvksh``         Assembly Support
-     ``Zvkt``          Assembly Support
+     ``Zvkg``          Supported (`See note <#iscv-vector-crypto-note>`__)
+     ``Zvkn``          Supported (`See note <#iscv-vector-crypto-note>`__)
+     ``Zvknc``         Supported (`See note <#iscv-vector-crypto-note>`__)
+     ``Zvkned``        Supported (`See note <#iscv-vector-crypto-note>`__)
+     ``Zvkng``         Supported (`See note <#iscv-vector-crypto-note>`__)
+     ``Zvknha``        Supported (`See note <#iscv-vector-crypto-note>`__)
+     ``Zvknhb``        Supported (`See note <#iscv-vector-crypto-note>`__)
+     ``Zvks``          Supported (`See note <#iscv-vector-crypto-note>`__)
+     ``Zvksc``         Supported (`See note <#iscv-vector-crypto-note>`__)
+     ``Zvksed``        Supported (`See note <#iscv-vector-crypto-note>`__)
+     ``Zvksg``         Supported (`See note <#iscv-vector-crypto-note>`__)
+     ``Zvksh``         Supported (`See note <#iscv-vector-crypto-note>`__)
+     ``Zvkt``          Supported
      ``Zvl32b``        (`Partially <#riscv-vlen-32-note>`__) Supported
      ``Zvl64b``        Supported
      ``Zvl128b``       Supported
@@ -267,6 +267,11 @@ Supported
 ``Zknd``, ``Zkne``, ``Zknh``, ``Zksed``, ``Zksh``
   No pattern matching exists.  As a result, these instructions can only be used from assembler or via intrinsic calls.
 
+.. _riscv-vector-crypto-note:
+
+``Zvbc``, ``Zvkg``, ``Zvkn``, ``Zvknc``, ``Zvkned``, ``Zvkng``, ``Zvknha``, ``Zvknhb``, ``Zvks``, ``Zvks``, ``Zvks``, ``Zvksc``, ``Zvksed``, ``Zvksg``, ``Zvksh``.
+  No pattern matching exists. As a result, these instructions can only be used from assembler or via intrinsic calls.
+
 .. _riscv-vlen-32-note:
 
 ``Zve32x``, ``Zve32f``, ``Zvl32b``