tipc: Use <linux/uaccess.h> instead of <asm/uaccess.h>

As warned by checkpatch.pl, use #include <linux/uaccess.h>
instead of <asm/uaccess.h>
Reviewed-by: NJon Maloy <jon.maloy@ericsson.com>
Reviewed-by: NErik Hugne <erik.hugne@ericsson.com>
Signed-off-by: NWang Weidong <wangweidong1@huawei.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

net/tipc/core.h

@@ -47,7 +47,7 @@
 #include <linux/mm.h>
 #include <linux/timer.h>
 #include <linux/string.h>
-#include <asm/uaccess.h>
+#include <linux/uaccess.h>
 #include <linux/interrupt.h>
 #include <linux/atomic.h>
 #include <asm/hardirq.h>