netlink: specs: rt-neigh: add C naming info

Add properties needed for C codegen to match names with uAPI headers.

Reviewed-by: Donald Hunter <donald.hunter@gmail.com>
Link: https://patch.msgid.link/20250418021706.1967583-10-kuba@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

Documentation/netlink/specs/rt-neigh.yaml

@@ -2,6 +2,7 @@
 
 name: rt-neigh
 protocol: netlink-raw
+uapi-header: linux/rtnetlink.h
 protonum: 0
 
 doc:
@@ -48,6 +49,7 @@ definitions:
   -
     name: nud-state
     type: flags
+    enum-name:
     entries:
       - incomplete
       - reachable
@@ -60,6 +62,7 @@ definitions:
   -
     name: ntf-flags
     type: flags
+    enum-name:
     entries:
       - use
       - self
@@ -72,12 +75,14 @@ definitions:
   -
     name: ntf-ext-flags
     type: flags
+    enum-name:
     entries:
       - managed
       - locked
   -
     name: rtm-type
     type: enum
+    enum-name:
     entries:
       - unspec
       - unicast
@@ -179,6 +184,7 @@ definitions:
 attribute-sets:
   -
     name: neighbour-attrs
+    name-prefix: nda-
     attributes:
       -
         name: unspec
@@ -241,6 +247,7 @@ attribute-sets:
         type: u8
   -
     name: ndt-attrs
+    name-prefix: ndta-
     attributes:
       -
         name: name
@@ -274,6 +281,7 @@ attribute-sets:
         type: pad
   -
     name: ndtpa-attrs
+    name-prefix: ndtpa-
     attributes:
       -
         name: ifindex
@@ -335,6 +343,7 @@ attribute-sets:
 
 operations:
   enum-model: directional
+  name-prefix: rtm-
   list:
     -
       name: newneigh