When it reboots into recovery for a factory reset, it still needs to
write the uncrypt status (-1) to the pipe.
Bug: 21511893
(cherry picked from commit 2c2cae8a4a)
Change-Id: Ia5a75c5edf3afbd916153da1b4de4db2f00d0209
uncrypt needs to be triggered to prepare the OTA package before
rebooting into the recovery. Separate uncrypt into two modes. In
mode 1, it uncrypts the OTA package, but will not reboot the
device. In mode 2, it wipes the /misc partition and reboots.
Needs matching changes in frameworks/base, system/core and
external/sepolicy to work properly.
Bug: 20012567
Bug: 20949086
(cherry picked from commit 158e11d673)
Change-Id: I349f6d368a0d6f6ee4332831c4cd4075a47426ff
