feeds.conf.default: add hashes
For reproducibility we want all feeds to be pinned with a hash.
Normally this isn't really needed because we can simply update the openwrt repo before doing a feeds update. However, since we're using a fork of openwrt, updating the openwrt repo doesn't mean it's inline with the feeds coming from openwrt.
Specify the hashes explicitly in feeds.conf.default.
Note that these will have to be updated whenever we rebase on a new openwrt version!
Signed-off-by: Arnout Vandecappelle (Essensium/Mind) firstname.lastname@example.org