isotp: add define for SF_BROADCAST support

When CAN_ISOTP_SF_BROADCAST is set in the CAN_ISOTP_OPTS flags the
CAN_ISOTP socket is switched into functional addressing mode, where
only single frame (SF) protocol data units can be send on the specified
CAN interface and the given tp.tx_id after bind().

Add the CAN_ISOTP_SF_BROADCAST define from Linux UAPI includes.

Signed-off-by: Oliver Hartkopp <socketcan@hartkopp.net>

include/linux/can/isotp.h

@@ -135,7 +135,7 @@ struct can_isotp_ll_options {
 #define CAN_ISOTP_FORCE_RXSTMIN	0x100	/* ignore CFs depending on rx stmin */
 #define CAN_ISOTP_RX_EXT_ADDR	0x200	/* different rx extended addressing */
 #define CAN_ISOTP_WAIT_TX_DONE	0x400	/* wait for tx completion */
-
+#define CAN_ISOTP_SF_BROADCAST	0x800	/* 1-to-N functional addressing */
 
 /* default values */