net-timestamp: Fix a documentation typo

SOF_TIMESTAMPING_OPT_ID puts the id in ee_data, not ee_info.

Cc: Willem de Bruijn <willemb@google.com>
Signed-off-by: Andy Lutomirski <luto@amacapital.net>
Acked-by: Willem de Bruijn <willemb@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

Documentation/networking/timestamping.txt

@@ -136,7 +136,7 @@ SOF_TIMESTAMPING_OPT_ID:
 
   This option is implemented only for transmit timestamps. There, the
   timestamp is always looped along with a struct sock_extended_err.
-  The option modifies field ee_info to pass an id that is unique
+  The option modifies field ee_data to pass an id that is unique
   among all possibly concurrently outstanding timestamp requests for
   that socket. In practice, it is a monotonically increasing u32
   (that wraps).