Need to consider if bridgeConfig changed the bridgeName

[tjjh89017]

https://github.com/tjjh89017/kvnet/blob/main/controllers/bridgeconfig_controller.go#L129-L134

bridgeConfig & UplinkConfig & VxlanConfig

easy way to deal with it
After findBridge, compare the brName and remove the Bridge before checking the add/update/delete

[tjjh89017]

delete Bridge CR and remove element from BridgeList after findBridge

[tjjh89017]

	for _, bridge := range bridges.Items {
		// get node name
		name := strings.Split(bridge.Name, ".")[0]
		// already have bridge
		nodeMap[name] |= 2
	}

to

	for _, bridge := range bridges.Items {
		// get node name
		name := strings.Split(bridge.Name, ".")[0]
		brName := strings.Split(bridge.Name, ".")[1]
		// already have bridge
		if brName == bridgeConfig.Spec.BridgeName {
			nodeMap[name] |= 2
		} else {
			// remove this bridge because bridge name is changed.
			// and don't mark it.
		}
	}