netlink: specs: add uint, sint to netlink-raw schema

Add uint, sint to the list of attr types in the netlink-raw schema. This
fixes the rt_link spec which had a uint attr added in commit
f858cc9 ("net: add IFLA_MAX_PACING_OFFLOAD_HORIZON device attribute")

Signed-off-by: Donald Hunter <donald.hunter@gmail.com>
Link: https://patch.msgid.link/20241213110827.32250-1-donald.hunter@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

Documentation/netlink/netlink-raw.yaml

@@ -221,7 +221,7 @@ properties:
               type: &attr-type
                 description: The netlink attribute type
                 enum: [ unused, pad, flag, binary, bitfield32,
-                        u8, u16, u32, u64, s8, s16, s32, s64,
+                        uint, sint, u8, u16, u32, u64, s8, s16, s32, s64,
                         string, nest, indexed-array, nest-type-value,
                         sub-message ]
               doc: