modules: lvgl: Register print callback after lv_init

Move initialization of the print callback handler after calling lv_init, as
the latter zeroes the global callback structure.

Signed-off-by: Fabian Blatz <[email protected]>
(cherry picked from commit 5cffb8e)

Author: faxe1008

modules/lvgl/lvgl.c

@@ -209,12 +209,12 @@ static int lvgl_init(void)
 	lvgl_heap_init();
 #endif
 
+	lv_init();
+
 #if CONFIG_LV_Z_LOG_LEVEL != 0
 	lv_log_register_print_cb(lvgl_log);
 #endif
 
-	lv_init();
-
 #ifdef CONFIG_LV_Z_USE_FILESYSTEM
 	lvgl_fs_init();
 #endif