serial: fsl_lpuart: specify transmit FIFO size for 32-bit variant

The commit 4e8f2459 ("tty: serial: fsl_lpuart: specify transmit
FIFO size") fixed lpuart_startup only.
Fix lpuart32_startup too.
Signed-off-by: Atsushi Nemoto <atsushi.nemoto@sord.co.jp>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/tty/serial/fsl_lpuart.c

@@ -1334,6 +1334,8 @@ static int lpuart32_startup(struct uart_port *port)
 	sport->txfifo_size = 0x1 << (((temp >> UARTFIFO_TXSIZE_OFF) &
 		UARTFIFO_FIFOSIZE_MASK) - 1);
 
+	sport->port.fifosize = sport->txfifo_size;
+
 	sport->rxfifo_size = 0x1 << (((temp >> UARTFIFO_RXSIZE_OFF) &
 		UARTFIFO_FIFOSIZE_MASK) - 1);