Whenever cml1 do_configure is used with a defconfig, oldconfig waits for
input. This silently fails on recent kconfig projects with:
"Error in reading or end of file."
We cannot use a more up to date kconfig target such as olddefconfig,
because busybox does not support it.
Signed-off-by: Stefan Müller-Klieser <s.mueller-klieser@phytec.de> Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>