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 <[e-mail]>
Link: https://lore.kernel.org/all/[e-mail]
Signed-off-by: Marc Kleine-Budde <[e-mail]>

include/uapi/linux/can.h

···
 };
 
 #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

···
 #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,
 };