Allow using a top-level shrinkwrap file with one or more npm://
dependencies, i.e. if the module isn't found at the top level then look
one level down.
Part of the fix for [YOCTO #9537].
(Bitbake rev: f7de3f8b5f628dee043fe783148812914ab20813)
Signed-off-by: Paul Eggleton <paul.eggleton@linux.intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>