[meta-xilinx] Using wic to create an iage you can dd to an SD card

[Philip Balister]

With the patches I just sent, you can run wic and make sd card images
that can be dd'd directly to the SD card and booted on the zc702.

export MACHINE=zc702-zynq7
bitbake core-image-minimal
wic create ../oe-core/scripts/lib/image/canned-wks/sdimage-bootpart.wks
-e core-image-minimal
sudo dd if=/var/tmp/wic/somefile of=/dev/sdX

insert card in zc702, turn on power, boot.

Philip