In recent versions of bitbake, it is not possible to initialise a
BBCooker object without having it load the configuration first. Thus we
should avoid creating the Tinfoil object here in bitbake-layers which
does that internally until we actually need to, so you can run
"bitbake-layers help" and not have to wait several seconds for the
output.

(Bitbake rev: 8f1e280fbbb6432d7bcc1fb4241f402668c6c5ea)

Signed-off-by: Paul Eggleton <paul.eggleton@linux.intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>