lv_conf_checker.py: add auto incude of lv_conf.h if available

scripts/lv_conf_checker.py

@@ -32,6 +32,14 @@ fout.write(
 
 #include <stdint.h>
 
+#if defined __has_include
+#  if __has_include("lv_conf.h")
+#   ifndef LV_CONF_INCLUDE_SIMPLE
+#    define LV_CONF_INCLUDE_SIMPLE
+#   endif
+#  endif
+#endif
+
 /*If lv_conf.h is not skipped include it*/
 #if !defined(LV_CONF_SKIP) && !defined(CONFIG_LV_CONF_SKIP)
 #  if defined(LV_CONF_PATH)											/*If there is a path defined for lv_conf.h use it*/