Build a tftpboot friendly image.
Build a rootfs cpio uimage with everything along with the other
images.
diff --git a/meta-phosphor/conf/machine/include/obmc-bsp-common.inc b/meta-phosphor/conf/machine/include/obmc-bsp-common.inc
index 60ed088..260cc90 100644
--- a/meta-phosphor/conf/machine/include/obmc-bsp-common.inc
+++ b/meta-phosphor/conf/machine/include/obmc-bsp-common.inc
@@ -14,6 +14,7 @@
MACHINEOVERRIDES =. "openbmc:"
IMAGE_FSTYPES += "overlay"
+IMAGE_FSTYPES += "cpio.${INITRAMFS_CTYPE}.u-boot"
IMAGE_INSTALL += "u-boot-fw-utils"
IMAGE_CLASSES += "obmc-phosphor-image_types_uboot"