* [bsp][art-pi] add spi lcd ili9488 driver * [bsp][art-pi] support LVGL display * [bsp][artpi] support LVGL indev * [bsp][artpi] debug LVGL indev with ft6236 * [bsp][artpi] swap and invert touchpad coordinate * [bsp][artpi] redundant declarations * [bsp][artpi] indent BSP_USING_LVGL config * [bsp][artpi] default build debug version * [bsp][artpi] fix BSP_USING_LVGL Kconfig