Add Raspberry Pi / Raspbian support

[gianklug]

ISSUE TYPE

• Feature

SUMMARY

If a host in the inventory is a raspberry pi, the Debian Repo is added to the sources list.
However this Repo doesn‘t support the armhf architechture and therefore using this repo doesn‘t work.
There is an official Raspberry Pi Repository which should be installed instead of the Debian one. However, it is unclear wether Ansible can distinguish between Debian and Raspbian.

STEPS TO REPRODUCE

Run the playbook over a raspberry pi host

EXPECTED RESULTS

Correct raspberry pi repo gets installed

ACTUAL RESULTS

The incompatible debian repo is installed