Change the type of tg_joinlock, mm_lock and md_lock from sem_t to mutex_t

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

wireless/ieee802154/mac802154_device.c

@@ -35,6 +35,7 @@
 #include <fcntl.h>
 
 #include <nuttx/arch.h>
+#include <nuttx/mutex.h>
 #include <nuttx/kmalloc.h>
 #include <nuttx/signal.h>
 #include <nuttx/mm/iob.h>
@@ -84,7 +85,7 @@ struct mac802154_chardevice_s
 {
   MACHANDLE md_mac;                     /* Saved binding to the mac layer */
   struct mac802154dev_callback_s md_cb; /* Callback information */
-  sem_t md_lock;                        /* Exclusive device access */
+  mutex_t md_lock;                      /* Exclusive device access */
 
   /* Hold a list of events */