tree 169f47e00b6182cf6bfe0d2079961885c1bf54f7
parent b45138a69e892adb2f8b20f9e6faf212450af434
author Tao Bao <tbao@google.com> 1431378498 -0700
committer Tao Bao <tbao@google.com> 1433886763 -0700

Change pre-recovery into two services

/system/bin/uncrypt needs to be triggered to prepare the OTA package
before rebooting into the recovery. Separate pre-recovery (uncrypt)
into two services: uncrypt that does the uncryption work and
pre-recovery that actually reboots the device into recovery.

Also create /cache/recovery on post-fs in case it doesn't exist.

Bug: 20012567
Bug: 20949086
(cherry picked from commit e48aed0f0abd10cb21e14d81ae46214d08872f79)
Change-Id: I9877cd6ac9412ea6a566bb1ec0807940c7a38ce5