am 88660fa5: vold: Check partitions 1-4 instead of 0-3

Merge commit '88660fa5d897a74f2fe07f4b827d37a453e32181' into eclair-mr2-plus-aosp

* commit '88660fa5d897a74f2fe07f4b827d37a453e32181':
  vold: Check partitions 1-4 instead of 0-3