Issues open-telemetry#3132, open-telemetry#3133: Semconv for hardware…

… metrics, network metrics and attributes (open-telemetry#3344)

Fixes open-telemetry#3132, open-telemetry#3133

## Changes

In semantic conventions for hardware metrics:

* Updated network adapter description
* Changed `type` to `hw.error.type` for the `hw.errors` metric