Separate template for PMP450 SM on different frequency bands in cnMaestro

Currently PMP450b SMs in both unlicensed 5GHz and licensed 3GHz are configured with the same templates in cnMaestro.

While the platform is the same for these two variations, the operation of these radios are fundamentally different. Would be good when designing templates in cnMaestro, that we can define which band for the SMs so that we can configure them differently.