fix: msgbus的malloc后没有转型,导致编译警告

app/port/luat_msgbus_air101.c

@@ -1,5 +1,6 @@
-
+#include "luat_base.h"
 #include "luat_msgbus.h"
+#include "luat_malloc.h"
 #include "wm_osal.h"
 static tls_os_queue_t *queue = NULL;
 
@@ -16,7 +17,7 @@ uint32_t luat_msgbus_put(rtos_msg_t *msg, size_t timeout)
     {
         return 1;
     }
-    rtos_msg_t* dst = luat_heap_malloc(sizeof(rtos_msg_t));
+    rtos_msg_t* dst = (rtos_msg_t*)luat_heap_malloc(sizeof(rtos_msg_t));
     memcpy(dst, msg, sizeof(rtos_msg_t));
     int ret = tls_os_queue_send(queue, (void *)dst, sizeof(rtos_msg_t));
     return ret;