[Bug]: HKSV doesn't work with T8420 Floodlight Camera
### What happened?

Installed latest 2.2 beta and configured my T8420 to use HKSV but no stream appears.  It seems the plugin is trying to use RTP/RTSP for the stream which this model doesn't support.

### Device Type

Floodlight (Supported)

### Plugin Version

beta (Best Effort)

### HomeBridge Version

v1.4.x (Supported)

### NodeJS Version

v16 (Supported)

### Operating System

Mac OS X 11+ (Supported)

### Relevant log output

```shell
N/A
```
