Installd: Take boot status as dexopt parameter

Expect the boot status explicitly as a parameter so that we do not
have to rely on dev.bootcomplete, which isn't meaningfully set
when the device needs the decryption screen on boot.

Bug: 23898216
(cherry picked from commit 72ebebed)
Change-Id: I9b34298caf70b1e5d40970cc0d04c469016a80a7