am d766090b: Avoid array overrun. We can now mount the /sdcard partition on our boot sdcards

Merge commit 'd766090b7a72562be9e64700e13882663004650e' into gingerbread-plus-aosp

* commit 'd766090b7a72562be9e64700e13882663004650e':
  Avoid array overrun. We can now mount the /sdcard partition on our boot sdcards