Add the ability to configure repositories in the same
way as we do Debuntu ones - via repos.yaml.
Removes .repo files from base - since these are not
needed there anymore.
gpgcheck = 1 is default in docker/base/dnf.conf
Change-Id: I7df7d452c45c57c434d5b4ad15a87963e4d6d0d4
Signed-off-by: Michal Nasiadka <mnasiadka@gmail.com>
806602e488