add gpio led uart

hc

2024-05-10 748e4f3d702def1a4bff191e0cf93b6a05340f01

 kernel/drivers/tty/tty_baudrate.c
..
..
@@ -8,6 +8,7 @@
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 #include <linux/termios.h>
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 #include <linux/tty.h>
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 #include <linux/export.h>
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+#include "tty.h"
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 /*