Bluetooth: Mesh: Check response address in Configuration Client

The Configuration Client doesn't check the address in a received
response. This means that a response from any device will be accepted.

This change ensures that the correct response will be accepted.

Signed-off-by: Pavel Vasilyev <[email protected]>

Author: PavelVPV

include/bluetooth/mesh/cfg_cli.h

@@ -28,8 +28,9 @@ struct bt_mesh_cfg_cli {
 
 	/* Internal parameters for tracking message responses. */
 	struct k_sem          op_sync;
-	uint32_t                 op_pending;
+	uint32_t              op_pending;
 	void                 *op_param;
+	uint16_t              op_addr;
 };
 
 /** @def BT_MESH_MODEL_CFG_CLI