pico bringup: remove ramdisk files
pico bringup: remove patches
pico bringup: support pico
pico bringup: fixup
pico bringup: keep files
add ramdisk placeholder.
pico bringup: we do NOT have a block device, so, dd won't work
pico bringup: remove testing (let's pray to god everything's ok!) && stale stuff from examples