Sometimes an "image" may not actually have a manifest file such as when
using a "baremetal kernel". This change allows for a user to set a
IMAGE_NO_MANIFEST flag to 1 in order to inform the code that there is no
corresponding manifest that should exist for an image.
(From OE-Core rev: 78f5c3cb3971c31a950deb5cab8992f3ba577440)
Signed-off-by: Randy Witt <randy.e.witt@linux.intel.com>
Signed-off-by: Ross Burton <ross.burton@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>