serial: lpc32xx: send CR before LF

For LPC32XX high-speed UART it is required to send a carriage return
symbol along with line feed. The problem was introduced in e503f90a
commit.

Signed-off-by: Vladimir Zapolskiy <vz@mleia.com>
Cc: Marek Vasut <marex@denx.de>
Acked-by: Marek Vasut <marex@denx.de>

drivers/serial/lpc32xx_hsuart.c

@@ -38,6 +38,9 @@ static int lpc32xx_serial_getc(void)
 
 static void lpc32xx_serial_putc(const char c)
 {
+	if (c == '\n')
+		serial_putc('\r');
+
 	writel(c, &hsuart->tx);
 
 	/* Wait for character to be sent */