doc/netlink: Add delete operation to ovs_vport spec

Add del operation to the spec to help with testing.
Signed-off-by: Donald Hunter <donald.hunter@gmail.com>
Link: https://lore.kernel.org/r/20230824142221.71339-1-donald.hunter@gmail.comSigned-off-by: Jakub Kicinski <kuba@kernel.org>

Documentation/netlink/specs/ovs_vport.yaml

@@ -138,10 +138,21 @@ operations:
             - dp-ifindex
             - ifindex
             - options
+    -
+      name: del
+      doc: Delete existing OVS vport from a data path
+      attribute-set: vport
+      fixed-header: ovs-header
+      do:
+        request:
+          attributes:
+            - dp-ifindex
+            - port-no
+            - type
+            - name
     -
       name: get
       doc: Get / dump OVS vport configuration and state
-      value: 3
       attribute-set: vport
       fixed-header: ovs-header
       do: &vport-get-op