Fixes: turris/turris-os-packages#384

I don't see a reason why we should exclude usb2 from base installation.
It is hardware support and all our devices do have usb ports so let's
support them in default in their completeness.

This reverts commit aed57671.

base-files are providing now files that were originally provided by
other packages so it fails to install.

The same patch was applied by someone else in upstream

Even OpenWrt 18.06 should be feature frozen and receive just security updates together with bug fixes, but there was added rpcbind.

Upstream disabled requirement for libbsd so we can drop this patch.

This makes old version to be same as our up to now but it should not
break anything and I epxect that our build bumper is going to bump it
because ABI will be different.