pibridge-serdev: Add missing include file

In pibridge_comm.h add missing include file for linux data types.

Signed-off-by: Lino Sanfilippo <l.sanfilippo@kunbus.com>

Author: linosanfilippo-kunbus

include/linux/pibridge_comm.h

@@ -1,7 +1,8 @@
-
 #ifndef _PIBRIDGE_COMM_H
 #define _PIBRIDGE_COMM_H
 
+#include <linux/types.h>
+
 int pibridge_req_io(u8 addr, u8 cmd, void *snd_buf, u8 snd_len, void *rcv_buf,
 		    u8 rcv_len);
 int pibridge_req_send_io(u8 addr, u8 cmd, void *snd_buf, u8 snd_len);