net: rxrpc: kerneldoc fixes

Simple fixes which require no deep knowledge of the code.

Cc: David Howells <[e-mail]>
Signed-off-by: Andrew Lunn <[e-mail]>
Signed-off-by: David S. Miller <[e-mail]>

net/rxrpc/af_rxrpc.c

···
  * @gfp: The allocation constraints
  * @notify_rx: Where to send notifications instead of socket queue
  * @upgrade: Request service upgrade for call
- * @intr: The call is interruptible
+ * @interruptibility: The call is interruptible, or can be canceled.
  * @debug_id: The debug ID for tracing to be assigned to the call
  *
  * Allow a kernel service to begin a call on the nominated socket.  This just