Driver for DSA switch chip was enabled but DSA it self was not. This
commit enables it as well.

Signed-off-by: Marek Behún <marek.behun@nic.cz>

This should fix the Omnia bug when system restarts if no PCIe cards are
connected.

Signed-off-by: Marek Behún <marek.behun@nic.cz>

There were two patches in patches/openwrt/to-upstream directory that
were fixes of hack patch. Those of course should not be send to upstream
and should be part of that specific patch. This commit merges those
patches to that patch.

Kernel compilation on mvebu is broken without this patch.

This reverts commit a488998d.

Ups. This should have been in master.

Let's hope that this fixes problems with kernel 4.19 compilation.

In Turris OS 3.x opkg was the package containing
/etc/opkg/distfeeds.conf. This file with TOS 4.0+ was moved by upstream
to base-files. This means hat we also have to move postinst for that
file update to base-files from opkg package. This should fix OPKG feeds
being reseted by update.

This is backport of change done in OpenWRT master. We need this to be
consistent in target name in packages.