This prevents multiple bitbake.srcrev entries being created when a
repository has more than one submodule. It also ensures that the
bitbake.srcrev entry is not added unless all submodules are correctly
fetched.
(Bitbake rev: 860ff1193fe53f04696d41635a720c2d1f29fa7f)
Signed-off-by: Paul Barker <pbarker@konsulko.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>