protobuf: needs thread support

Fix:
http://autobuild.buildroot.net/results/086/08661b6bd6796c9126bcbad3245323160b182ac8/

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
configs/qemu: bump relevant config versions

Signed-off-by: Gustavo Zacarias <gustavo@zacarias.com.ar>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
boost: bump to version 1.54.0

Signed-off-by: Jerzy Grzegorek <jerzy.grzegorek@trzebnica.net>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
chrony: bump to version 1.29

Signed-off-by: Jerzy Grzegorek <jerzy.grzegorek@trzebnica.net>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
gdk-pixbuf: bump to version 2.28.2

Signed-off-by: Jerzy Grzegorek <jerzy.grzegorek@trzebnica.net>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
ccid: bump to version 1.4.13

Signed-off-by: Jerzy Grzegorek <jerzy.grzegorek@trzebnica.net>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
beaglebone: add BeagleBone Black support

* Configure as initramfs
* Update BeagleBone to 3.8.13-beagleboard kernel
* Update to u-boot 2013.07
* Add BeagleBone Black device tree

Changes since v1 (http://lists.busybox.net/pipermail/buildroot/2013-September/079046.html):
* Added BeagleBone Black to single config for BeagleBone and BeagleBone Black,
  rather than having two configs
* Used 'make ARCH=arm savedefconfig' to create Linux config file
* Dropped setting of DEVTMPFS, since it is default now
* Switched to u-boot 2013.07 from 2013.04
* Patched u-boot to work with initramfs by default without uEnv.txt
* Removed wake-up M3 firmware loading for now, until debugged

Signed-off-by: Jason Kridner <jdk@ti.com>
Tested-by: Fatih Aşıcı <fatih.asici@gmail.com>