serial: 8250: Add UART_CAP_NOTEMT on PORT_16550A_FSL64

The Freescale variant of the 16550A doesn't have an interrupt on TEMT
available when using the FIFO mode.
Signed-off-by: Eric Tremblay <etremblay@distech-controls.com>
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Link: https://lore.kernel.org/r/20220330104642.229507-3-u.kleine-koenig@pengutronix.deSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/tty/serial/8250/8250_port.c

@@ -263,7 +263,7 @@ static const struct serial8250_config uart_config[] = {
 		.tx_loadsz	= 63,
 		.fcr		= UART_FCR_ENABLE_FIFO | UART_FCR_R_TRIG_10 |
 				  UART_FCR7_64BYTE,
-		.flags		= UART_CAP_FIFO,
+		.flags		= UART_CAP_FIFO | UART_CAP_NOTEMT,
 	},
 	[PORT_RT2880] = {
 		.name		= "Palmchip BK-3103",