(fix) lvgl deinit on soft-reset

Include `lv_conf.h` in `mpconfigboard.h` so lvgl deinit is called on
soft-reset, so calling `lvgl.deinit()` is no longer necessary.

This closes #343

Author: Carglglz

gen/gen_mpy.py

@@ -1365,6 +1365,15 @@ def register_int_ptr_type(convertor, *types):
 
 }
 
+void mp_deinit_lvgl_mod()
+{
+
+    if (MP_STATE_VM(lvgl_mod_initialized)) {
+        lv_deinit();
+    }
+
+}
+
 static mp_obj_t lvgl_mod___init__(void) {
     if (!MP_STATE_VM(lvgl_mod_initialized)) {
         // __init__ for builtins is called each time the module is imported,

lv_conf.h

@@ -306,6 +306,10 @@ extern void mp_lv_deinit_gc();
 #define LV_GC_INIT() mp_lv_init_gc()
 #define LV_GC_DEINIT() mp_lv_deinit_gc()
 
+// include lv_conf.h in "mpconfigboard.h" for this to take effect.
+extern void mp_deinit_lvgl_mod();
+#define MICROPY_PORT_DEINIT_FUNC mp_deinit_lvgl_mod()
+
 #define LV_ENABLE_GLOBAL_CUSTOM 1
 #if LV_ENABLE_GLOBAL_CUSTOM
     extern void *mp_lv_roots;