lvgl: increase buffer size

Use value from ESP-BSP.

Author: stintel

main/slvgl.c

@@ -102,7 +102,9 @@ esp_err_t init_lvgl_display(void)
     ESP_LOGD(TAG, "init_lvgl: lcdp->lcd_io_handle: %p", lcdp->lcd_io_handle);
 
     const lvgl_port_display_cfg_t cfg_ld = {
-        .buffer_size = LCD_H_RES * LCD_V_RES / 10,
+        //.buffer_size = LCD_H_RES * LCD_V_RES / 10,
+        // ESP-BOX default
+        .buffer_size = LCD_H_RES * 100,
         .double_buffer = false,
         // DMA and SPIRAM
         // E (16:37:21.267) LVGL: lvgl_port_add_disp(190): Alloc DMA capable buffer in SPIRAM is not supported!