am 817a8ac9: (-s ours) bump version from 2.2 to 2.2.1 for next froyo release

Merge commit '817a8ac99392228f894d18ea40b0fb4c1b6ca8fe' into gingerbread

* commit '817a8ac99392228f894d18ea40b0fb4c1b6ca8fe':
  bump version from 2.2 to 2.2.1 for next froyo release