This aligns with image-vm, and makes sense for wic bootimg-efi images, which
don't actually want any of the live installer bits.
(From OE-Core rev: 3d985512acdf1d7821c410d196fe372221555524)
Signed-off-by: Christopher Larson <chris_larson@mentor.com>
Signed-off-by: Ross Burton <ross.burton@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>