加网提速

1：改成最后扫描的状态

#define LAST_JOINING_STATE \
    EMBER_AF_PLUGIN_NETWORK_STEERING_STATE_SCAN_SECONDARY_CENTRALIZED

 

2：设置扫描开始的状态

emAfPluginNetworkSteeringState = EMBER_AF_PLUGIN_NETWORK_STEERING_STATE_SCAN_SECONDARY_CENTRALIZED;