n_tracesink: stop including <asm-generic/bug>

<asm-generic/bug> contains the default implementation of BUG() and friends,
which architectures may decide to use. The proper way to get them is
<linux/bug.h>, so use that.

Signed-off-by: Christoph Hellwig <[e-mail]>
Signed-off-by: Arnd Bergmann <[e-mail]>

drivers/tty/n_tracesink.c

···
 #include <linux/tty_ldisc.h>
 #include <linux/errno.h>
 #include <linux/string.h>
-#include <asm-generic/bug.h>
+#include <linux/bug.h>
 #include "n_tracesink.h"
 
 /*