/etc/config is the default uci folder. Also marking it as
configuration file prevents overwriting it on updates.

Signed-off-by: Jonathan Pagel <jonny_tischbein@systemli.org>

Telegraf is a plugin-driven agent for collecting and sending metrics
and events. It supports various inputs (including prometheus
endpoints) and is able to send data into InfluxDB.
https://www.influxdata.com/time-series-platform/telegraf/

Signed-off-by: Jonathan Pagel <jonny_tischbein@systemli.org>