Merge pull request #304 from mdmillerii/update-uboot

Update u-boot to pick up memory corruption fix
tree: 444f1845f1351c082b5e0e71a908426e81bbe4d4
  1. classes/
  2. common/
  3. conf/
  4. COPYING.apache-2.0
  5. COPYING.MIT
  6. LICENSE