[Ember Zigbee]Zigbee3.0设备入网提速

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针对Simplicity Studio 4，EmberZNet协议栈Zigbee3.0设备入网时间提速

Platform：Simplicity Studio 4、EmberZNet SDK 6.4.1.0

【SPP】Content：

1.设置开始扫描状态

由于zigbee3.0拥有4种入网方式，

enum {
  EMBER_AF_PLUGIN_NETWORK_STEERING_STATE_NONE                         = 0x00,
  // These next two states are only run if explicitly configured to do so
  // See emAfPluginNetworkSteeringSetConfiguredKey()
  EMBER_AF_PLUGIN_NETWORK_STEERING_STATE_SCAN_PRIMARY_CONFIGURED      = 0x01,
  EMBER_AF_PLUGIN_NETWORK_STEERING_STATE_SCAN_SECONDARY_CONFIGURED    = 0x02,
  EMBER_AF_PLUGIN_NETWORK_STEERING_STATE_SCAN_PRIMARY_INSTALL_CODE    = 0x03,
  EMBER_AF_PLUGIN_NETWORK_STEERING_STATE_SCAN_SECONDARY_INSTALL_CODE  = 0x04,
  EMBER_AF_PLUGIN_NETWORK_STEERING_STATE_SCAN_PRIMARY_CENTRALIZED     = 0x05,
  EMBER_AF_PLUGIN_NETWORK_STEERING_STATE_SCAN_SECONDARY_CENTRALIZED   = 0x06,
  EMBER_AF_PLUGIN_NETWORK_STEERING_STATE_SCAN_PRIMARY_DISTRIBUTED     = 0x07,
  EMBER_AF_PLUGIN_NETWORK_STEERING_STATE_SCAN_SECONDARY_DISTRIBUTED   = 0x08,
  EMBER_AF_PLUGIN_NETWORK_STEERING_STATE_SCAN_FINISHED                = 0x09,

  EMBER_AF_PLUGIN_NETWORK_STEERING_STATE_UPDATE_TCLK                  = 0x10,
  EMBER_AF_PLUGIN_NETWORK_STEERING_STATE_VERIFY_TCLK                  = 0x20,
};

设备上电会按照这个四种方式轮询扫描入网，而一般设备都采用集中式入网（CENTRALIZED）方式入网，故首先设置开始扫描方式为集中式，协议栈默认设置为EMBER_AF_PLUGIN_NETWORK_STEERING_STATE_SCAN_PRIMARY_INSTALL_CODE，即二维码优先码信道扫描方式

emAfPluginNetworkSteeringState = gUseConfiguredKey
                                       ? EMBER_AF_PLUGIN_NETWORK_STEERING_STATE_SCAN_PRIMARY_CONFIGURED
                                       : EMBER_AF_PLUGIN_NETWORK_STEERING_STATE_SCAN_PRIMARY_INSTALL_CODE;

修改emAfPluginNetworkSteeringState = EMBER_AF_PLUGIN_NETWORK_STEERING_STATE_SCAN_SECONDARY_CENTRALIZED;

2.修改最后扫描状态

协议栈默认为

#define LAST_JOINING_STATE \
  EMBER_AF_PLUGIN_NETWORK_STEERING_STATE_SCAN_SECONDARY_DISTRIBUTED

修改为#define LAST_JOINING_STATE \
    EMBER_AF_PLUGIN_NETWORK_STEERING_STATE_SCAN_SECONDARY_CENTRALIZED