mtd: add option to build mkfs.ubifs for target

[Thomas: implement simplifications suggested by Thomas De
Schampheleire, add missing 'depends' on required toolchain features.]

Signed-off-by: Paul B. Henson <henson@acm.org>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
uboot: add support for Freescale .sb format to uboot

[Thomas: update to recent Buildroot, add missing dependency on
host-elftosb.]

Signed-off-by: Gary Coulbourne <bear@bears.org>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
lockdev: add lockdev

Add lockdev a package for locking devices.

[Thomas: change location in menuconfig, reformat header in .mk file.]

Signed-off-by: Spenser Gilliland <spenser@gillilanding.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
libcec: add libcec for HDMI device Control

This patch adds libcec for HDMI device control.  It enables Raspberry Pi
support if the rpi-userland package is installed.

[Thomas: add C++ dependency, reformat .mk header.]
Signed-off-by: Spenser Gilliland <spenser@gillilanding.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
strongswan: new package

strongSwan is an OpenSource IPsec implementation for the Linux
operating system. It is based on the discontinued FreeS/WAN project
and the X.509 patch.

Signed-off-by: Jérôme Pouiller <jezz@sysmic.org>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>