Mark _debug_uart_init() as static to avoid sparse warning and
inline it to debug_uart_init().
Reported-by: NThomas Chou <thomas@wytron.com.tw>
Signed-off-by: NMichal Simek <michal.simek@xilinx.com>
Reviewed-by: NThomas Chou <thomas@wytron.com.tw>
Reviewed-by: NSimon Glass <sjg@chromium.org>
Reviewed-by: NBin Meng <bmeng.cn@gmail.com>
Acked-by: NSimon Glass <sjg@chromium.org>