drm/panel: ilitek-ili9881d: Add support for Wanchanglong W552946AAA panel

drm/panel: ilitek-ili9881d: Add support for Wanchanglong W552946AAA panel

W552946AAA is a panel by Wanchanglong. This panel utilizes the
Ilitek ILI9881D controller.

W552946AAA is similar to W552946ABA, but the W552946AAA only
uses 2 lanes.

Tested on rk3506g-evb1-v10.

Signed-off-by: Chaoyi Chen <chaoyi.chen@rock-chips.com>
Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://patch.msgid.link/20251106020632.92-6-kernel@airkyi.com