The TI TCA9535 variant has the same programming model as the NXP PCA9535.

Document the "ti,tca9535" compatible string.
Signed-off-by: Fabio Estevam <festevam@gmail.com>
Acked-by: Conor Dooley <conor.dooley@microchip.com>
Link: https://lore.kernel.org/r/20240531121801.2161154-2-festevam@gmail.comSigned-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>