[fixup] add cache maintenance ops;

fix bugs on cache maintenance when starting user app

components/lwp/lwp.c

@@ -1097,6 +1097,8 @@ static void _lwp_thread_entry(void *parameter)
         icache_invalid_all();
     }
 
+    rt_hw_icache_invalidate_all();
+
 #ifdef ARCH_MM_MMU
     arch_start_umode(lwp->args, lwp->text_entry, (void *)USER_STACK_VEND, tid->stack_addr + tid->stack_size);
 #else

components/lwp/lwp_pid.c

@@ -467,6 +467,10 @@ void lwp_free(struct rt_lwp* lwp)
             }
         }
     }
+    else
+    {
+        level = rt_hw_interrupt_disable();
+    }
 
     /* for parent */
     {