am 48712510: am a13f574e: Fix 2205899 - unable to access last row using trackball scroll if last row is having less than 4 icons.

Merge commit '487125107c151b7ec1de2dd559cda5fee1fa598a' into eclair-mr2-plus-aosp

* commit '487125107c151b7ec1de2dd559cda5fee1fa598a':
  Fix 2205899 - unable to access last row using trackball scroll if last row is having less than