[uboot-tools] (3 commits) ...update the tarball :)

[Dennis Gilmore]

Summary of changes:

  062ad92... update to 2012.04-rc3 (*)
  e57cc1b... add patches needed to support zimage and uEnv.txt on panda  (*)
  5545451... update the tarball :) (*)

(*) This commit already existed in another branch; no separate mail sent