drivers: serial: DEBUG_UART_SKIP_INIT depends on DEBUG_UART

DEBUG_UART_SKIP_INIT is used only by debug UART and thus should depend
on DEBUG_UART.

Signed-off-by: Simon Goldschmidt <simon.k.r.goldschmidt@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
1 file changed