According to the cooker's change, this commit fixes the way to getting
recipe's build dependency.
(Bitbake rev: da64e59f2e738d6103605139ba2d3e2cdaa35b11)
Signed-off-by: Dongxiao Xu <dongxiao.xu@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>