am 671f5fb0: Don\'t increase partition size for ext4 user images. [DO NOT MERGE]

Merge commit '671f5fb09f3510c16f73049cad9d8d6d652eaad8' into gingerbread-plus-aosp

* commit '671f5fb09f3510c16f73049cad9d8d6d652eaad8':
  Don't increase partition size for ext4 user images. [DO NOT MERGE]