i2c: i2c-gpio: add support for i2c-gpio,sda-output-only

Some I2C slave devices are read-only and don't even answer with NACK.
For example FD65x segment LED controllers.
Make them usable with i2c-gpio,sda-output-only that are already supported
by Linux 6.3+.

Signed-off-by: Alex Shumsky <alexthreed@gmail.com>
Reviewed-by: Heiko Schocher <hs@denx.de>
2 files changed