[CAN]: Fix plain integer definitions in userspace header.

This patch fixes the use of plain integers instead of __u32 in a struct
that is visible from kernel space and user space.

Thanks to Sam Ravnborg for pointing out the wrong plain int usage.

Signed-off-by: Oliver Hartkopp <[e-mail]>
Acked-by: Sam Ravnborg <[e-mail]>
Signed-off-by: David S. Miller <[e-mail]>

include/linux/can/bcm.h

···
  * @frames:    array of CAN frames.
  */
 struct bcm_msg_head {
-	int opcode;
-	int flags;
-	int count;
+	__u32 opcode;
+	__u32 flags;
+	__u32 count;
 	struct timeval ival1, ival2;
 	canid_t can_id;
-	int nframes;
+	__u32 nframes;
 	struct can_frame frames[0];
 };