init: Move file system initialization before clock/irq

since these subsystem may register the driver under /dev

Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>

sched/init/nx_start.c

@@ -613,6 +613,10 @@ void nx_start(void)
     }
 #endif
 
+  /* Initialize the file system (needed to support device drivers) */
+
+  fs_initialize();
+
   /* Initialize the interrupt handling subsystem (if included) */
 
 #ifdef CONFIG_HAVE_WEAKFUNCTIONS
@@ -680,10 +684,6 @@ void nx_start(void)
     }
 #endif
 
-  /* Initialize the file system (needed to support device drivers) */
-
-  fs_initialize();
-
 #ifdef CONFIG_NET
   /* Initialize the networking system */