tree c5a4fbdd1661a923de9988951744a2545cf0239a
parent 475377b68a49197b14d8ff6553842b7f417d8161
author Doug Zongker <dougz@android.com> 1389731440 -0800
committer Doug Zongker <dougz@android.com> 1389891299 -0800

add the pre-recovery service

Add a service called "pre-recovery" which is normally stopped but can
be started by the system server when we want to go into recovery.  It
will do any preparation needed (currently needed to handle update
packages that reside on an encrypted /data partition) and then set
sys.powerctl when it's ready to actually reboot.

Bug: 12188746
Change-Id: I894a4cb200395a0f6d7fe643ed4c2ac0a45d2052