"bitbake meta-toolchain" with qemu image testing enabled causes problems
since it adds a task after do_rootfs which doesn't exist in this case.
We should simply ignore these extra dependencies rather than adding
them in which is what this patch does (adding a debug message when this
happens).
(Bitbake rev: 843d3d6b0a7eb2e2f7b50c555767f5385df16ede)
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>