pch_uart: Fix missing break for 16 byte fifo

Otherwise we fall back to the wrong value.

Reported-by: <dcb314@hotmail.com>
Resolves-bug: https://bugzilla.kernel.org/show_bug.cgi?id=44091
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
diff --git a/drivers/tty/serial/pch_uart.c b/drivers/tty/serial/pch_uart.c
index d291518..c5bc23d 100644
--- a/drivers/tty/serial/pch_uart.c
+++ b/drivers/tty/serial/pch_uart.c
@@ -1266,6 +1266,7 @@
 		break;
 	case 16:
 		fifo_size = PCH_UART_HAL_FIFO16;
+		break;
 	case 1:
 	default:
 		fifo_size = PCH_UART_HAL_FIFO_DIS;