Samples: Bluetooth: HF: Fix link key missing issue

The bonding info is not loaded after the Bluetooth
initialization again.

Call settings_load after the Bluetooth initialized.

Signed-off-by: Lyle Zhu <[email protected]>

Author: lylezhu2012

samples/bluetooth/handsfree/src/main.c

@@ -17,6 +17,7 @@
 #include <zephyr/bluetooth/bluetooth.h>
 #include <zephyr/bluetooth/conn.h>
 #include <zephyr/bluetooth/classic/hfp_hf.h>
+#include <zephyr/settings/settings.h>
 
 static void connected(struct bt_conn *conn)
 {
@@ -88,6 +89,10 @@ static void bt_ready(int err)
 		return;
 	}
 
+	if (IS_ENABLED(CONFIG_SETTINGS)) {
+		settings_load();
+	}
+
 	printk("Bluetooth initialized\n");
 
 	err = bt_br_set_connectable(true);