Fix partial user cleanup on restart

Internal volume was not available during PackageManagerService creation,
which resulted in a zombie user's folder not being cleaned after a reboot.

Add the internal volume earlier in the boot cycle so that it can be accessed
for user cleanup.

Bug: 22483086
Change-Id: I8f3ffbb25f3902d00a96d1ee2d7a79373c5e35b7
2 files changed