commit 80031361747aec92163464f2ee08870fec33bcb0 upstream.

Switch to the "marvell,armada-38x-uart" driver variant to empty
the UART buffer before writing to the UART_LCR register.
Signed-off-by: NJoshua Scott <joshua.scott@alliedtelesis.co.nz>
Tested-by: NAndrew Lunn <andrew@lunn.ch>
Acked-by: Gregory CLEMENT <gregory.clement@bootlin.com>.
Cc: stable@vger.kernel.org
Fixes: 43e28ba8 ("ARM: dts: Use armada-370-xp as a base for armada-xp-98dx3236")
Signed-off-by: NGregory CLEMENT <gregory.clement@bootlin.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>