The staged sysupgrade allows to properly unmount the rootfs before writing
the new partitions. This will fix upgrades losing configuration when
parition sizes change on x86 and similar image types.

Reverts d5829d87 ("gluon-mesh-batman-adv-core: disable bridge port
learning on bat0").

Fixes #1121

Fixes (some of the) issues breaking build using long paths.

Add upstream patch to fix CVE-2016-10229

This fixes excessively frequent calls to some init scripts.

In particular, this fixes packages of a certain range of sizes not being
transmitted correctly, leading to hanging TCP connections.

uradvd will tolerate devices appearing and disappearing during runtime.

Fixes endless restarts of uradvd.

Should fix sysupgrades on disks with 4k block size.

Fixes #1059

The current autoupdater will only respect the last line for a given model
name, so we can add SHA256 checksums as long as they occur before the
corresponding SHA512 line.

Backport a few patches to allow sysupgrades on mmcblk and similar block
devices.

A lot of our code does not actually work with other prefix lengths.

Fixes #1014

Because we unconditionally appended `-i br-client` to the command line of
respondd, it wasn't restarted when br-client changed state. Now, we use a
jsonfilter expression on the network.interface dump data, similar to how the
other interface names are generated, and only add the interface to the argument
list if it is up.

These devices don't have unique MAC addresses with OpenWrt/LEDE at the moment
(see #993).

ath10k has to switch the regulatory domain when switching the default
country when ATH_USER_REGD is enabled. This is for example important when
switching from country US (FCC) to DE (ETSI). The ath implementation will
use ath_reg_dyn_country_user_allow to check if this is allowed.

Unfortunately, this function always seems to return false to
ath_reg_notifier_apply even when ATH_USER_REGD is enabled. But it must
actually always accept the requests from the user (when ATH_USER_REGD is
enabled) to correctly set the conformance test limits in the ath10k binary
blob.

Not doing it will sometimes allow too high transmit powers on edge channels
for correctly calibrated devices outside their default regulatory domain.

Signed-off-by: Sven Eckelmann <sven.eckelmann@open-mesh.com>