linux-firmware: add firmware for Lontium LT9611UXC DSI to HDMI bridge

Add firmware version 0x43 provided by Lontium themselves.

Signed-off-by: Dmitry Baryshkov <dbaryshkov@gmail.com>
Cc: 张磊磊 <llzhang@lontium.com>
Cc: Bruce <cyin@lontium.com>