If the source of the rootfs is not a bitbake cooked image, or it is not
pointing to the root of one, we call pseudo again, which will produce
a new pseudo folder at rootfs/../pseudo
Eg:
part /etc --source rootfs --rootfs-dir=${IMAGE_ROOTFS}/home --fstype=ext4
Cc: Paul Barker <pbarker@konsulko.com> Signed-off-by: Ricardo Ribalda Delgado <ricardo@ribalda.com> Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>