Move VDM initialization from PermissionManager constructor to the caller

ag/26028525 caused a regression in logcat size stats. It's due to virtual device service not found when initializing PermissionManager.
Since there is only one caller of VDM, move VDM initialization to the caller.

Bug: 324493673
Test: presubmit
Change-Id: I6d84071ddcdb0bf24c75a862706d2505c2d96623
1 file changed