drm/panel: ilitek-ili9805: adjust the includes

Adjust the includes to explicitly include the correct headers.

Suggested-by: Rob Herring <robh@kernel.org>
Signed-off-by: Dario Binacchi <dario.binacchi@amarulasolutions.com>
Signed-off-by: Maxime Ripard <mripard@kernel.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20231213112401.2000837-1-dario.binacchi@amarulasolutions.com