Add a yocto-kernel command allowing users to list all the kernel
features available to a BSP. This includes the features contained in
linux-yocto meta branches as well as recipe-space features defined
locally to the BSP.
(From meta-yocto rev: 12f3af8d92456ad9212170decdbe102fc78b58f6)
Signed-off-by: Tom Zanussi <tom.zanussi@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>