can: uapi: move CAN_RAW_FILTER_MAX definition to raw.h

CAN_RAW_FILTER_MAX is only relevant for CAN_RAW sockets and used in
linux/can/raw.c or in userspace applications that include the raw.h
file anyway.

Signed-off-by: Oliver Hartkopp <socketcan@hartkopp.net>
Link: https://lore.kernel.org/all/20230609121051.9631-1-socketcan@hartkopp.net
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>

include/uapi/linux/can.h

@@ -285,6 +285,5 @@ struct can_filter {
 };
 
 #define CAN_INV_FILTER 0x20000000U /* to be set in can_filter.can_id */
-#define CAN_RAW_FILTER_MAX 512 /* maximum number of can_filter set via setsockopt() */
 
 #endif /* !_UAPI_CAN_H */

include/uapi/linux/can/raw.h

@@ -49,6 +49,8 @@
 #include <linux/can.h>
 
 #define SOL_CAN_RAW (SOL_CAN_BASE + CAN_RAW)
+#define CAN_RAW_FILTER_MAX 512 /* maximum number of can_filter set via setsockopt() */
+
 enum {
 	SCM_CAN_RAW_ERRQUEUE = 1,
 };