[service] passing StakingAccount to staking service

Signed-off-by: Leo Chen <leo@harmony.one>

node/service_setup.go

@@ -104,7 +104,7 @@ func (node *Node) setupForNewNode() {
 	nodeConfig, chanPeer := node.initNodeConfiguration()
 
 	// Register staking service.
-	node.serviceManager.RegisterService(service.Staking, staking.New(node.host, node.AccountKey, node.beaconChain, node.NodeConfig.ConsensusPubKey))
+	node.serviceManager.RegisterService(service.Staking, staking.New(node.host, node.StakingAccount, node.beaconChain, node.NodeConfig.ConsensusPubKey))
 	// Register peer discovery service. "0" is the beacon shard ID
 	node.serviceManager.RegisterService(service.PeerDiscovery, discovery.New(node.host, nodeConfig, chanPeer, node.AddBeaconPeer))
 	// Register networkinfo service. "0" is the beacon shard ID