Make ubiquiti-rocket-m a separate device rather than a bullet-m alias to
enable USB support and allow adding devive-specific packages.

This commit adds support for the AVM Fritz!Box 4020 WiFi-router.

SoC:   Qualcomm Atheros QCA9561 (Dragonfly) 750MHz
RAM:   Winbond W971GG6KB-25
FLASH: Macronix MX25L12835F
WiFi:  QCA9561 b/g/n 3x3 450Mbit/s
USB:   1x USB 2.0
IN:    WPS button, WiFi button
OUT:   Power LED green, Internet LED green, WLAN LED green,
       LAN LED green, INFO LED green, INFO LED red
UART:  Header Next to Black metal shield
       Pinout is 3.3V - RX - TX - GND (Square Pad is 3.3V)
       The Serial setting is 115200-8-N-1.

Tested and working:
 - Ethernet (LAN + WAN)
 - WiFi (correct MAC)
 - Installation via EVA bootloader
 - OpenWRT sysupgrade
 - Buttons
 - LEDs

Not working:
 - USB port

Installation via EVA:
In the first seconds after Power is connected, the bootloader will
listen for FTP connections on 169.254.157.1 (Might also be 192.168.178.1). Firmware can be uploaded
like following:

  ftp> quote USER adam2
  ftp> quote PASS adam2
  ftp> binary
  ftp> debug
  ftp> passive
  ftp> quote MEDIA FLSH
  ftp> put openwrt-sysupgrade.bin mtd1

Note that this procedure might take up to two minutes. After transfer is
complete you need to powercycle the device to boot OpenWRT.

Signed-off-by: David Bauer <mail@david-bauer.net>

This commit adds information about:
- how cpu time is spent since boot in jiffies (1/100*sek) (cpu)
    - the value is summed for all cores, so in 10 seconds the
      summed values will increase by 4000, if the cpu has
      4 cores
- context switches since boot (ctxt)
- interrupt counters since boot (intr, softirq)
- forks since boot (processes)

    { "stat": {
       "cpu": {
         "user": 219403,
         "nice": 1714,
         "system": 75159,
         "idle": 2727739,
         "iowait": 2943,
         "irq": 0,
         "softirq": 571
       },
       "intr": 8426340,
       "ctxt": 50992590,
       "processes": 10549,
       "softirq": 5161884
    } }

0bf3b72c33d9 nat46: fixup PKG_MIRROR_HASH
23aa2e7b4afa nodogsplash2: Add NDS Restart Hook for Firewall (#369)
7ae81c8311ec cjdns: 20.1 -> 20.2
ff7b5da265e1 prince: version bump to v0.4
2f90fe406c58 miniupnpd: De-maintainering myself.
fdaa4cde3b2c bmx7: bump version
455a54207c84 batman-adv: upgrade package to latest release 2018.1
2e4937ea68f8 batctl: upgrade package to latest release 2018.1
a0eca40b0003 alfred: upgrade package to latest release 2018.1
015e5e99f2b6 bmx7: use configReaload on service reload
0ced8ec5a763 bmx7: keep bmx7 secret keys on sysupgrade
4bff0b3c65c5 cjdns: build fixes
7fc2fbdfc1b7 babeld: release 1.8.1
135bc605b4cf alfred: Support interface IDs with more than two digits
91e600e1cd9a bmx7: convert init script to use procd
86be0095b475 nodogsplash2: Add compatibility with mwan3 v2
17fccad969ea smcroute: Change download to HTTP
63cae8f571a6 bmx7: bump version

999bb66b20b0 kernel: add missing in6_dev_put_clear call to an ipv6 network patch
81573ea25924 kernel: bump kernel 4.4 to 4.4.129 for 17.01
afa887388766 gcc: gcc 6.3.0 fix comparison between pointer and integer

In multidomain setups, VXLAN is enabled by default, but can be disabled in
domain configs using the mesh/vxlan option. In single domain setups, the
mesh/vxlan option is mandatory.

The UCI option for legacy mode is removed.

Fixes #1364

Fixes: 8e5abf02 ("treewide: switch to ebtables-tiny")

Let's keep the default package selection to hardware support.

eed9d40133fe ar71xx: Ubiquiti Airmax M: add relocate-kernel to invalidate cache
23a638ebd1fd brcm47xx: backport upstream patches for Netgear WNR1000 V3

efb6ca189641 base-files: /lib/functions.sh: ignore errors in insert_modules
b5ba01a0d3f6 fstools: update to latest lede-17.01 branch
a9b607740273 kernel: bump kernel 4.4 to 4.4.126 for 17.01
09d95e44fc3d mbedtls: change libmbedcrypto.so soversion back to 0
4673a0bffc89 kernel: mtd: bcm47xxpart: improve handling TRX partition size

Also switch to the upstreamed version of "kernel: disable accept_ra by
default".

The local_node ifstatus must be checked for local-node, not client. While
we're at it, also clean up the syntax a bit.

batman-adv-specific parts are moved to a new package
gluon-status-page-mesh-batman-adv.

gluon-core, gluon-l3roamd: introduce script gluon-list-mesh-interfaces that lists all currently active mesh interfaces

gluon-status-page: reduce usage of absolute paths in cgi-bin scripts neighbours-nodeinfo and stations

The field is unused.

ar71xx-generic and -tiny benefit most from the optimized kernel, as they
contain all devices with 32MB RAM. We enable CONFIG_GLUON_SPECIALIZE_KERNEL
for all targets using the mips24_kc architecture so packages shared between
targets don't need to be rebuild all the time.