busybox-configure: Add unxz seamless, xz and feature_tar_full flag.
busybox-configure: Add unxz seamless, xz and feature_tar_full flag.

oe-lite/base,moths/base,moths/base,moths/base,oe-lite/base,oe-lite/base,esben/base,moths/base,esben/base,esben/base,esben/base,moths/base,moths/base,esben/base,oe-lite/base,oe-lite/base,esben/base,oe-lite/base