Move addPluginListener to onUserUnlocked

addPluginListener() needs to be moved into onUserUnlocked() since it
reads from the shared preferences. This fixes a crash in
Launcher3QuickStepGo on wembley.

Bug: 143249037
Change-Id: Ib60f688cb3f91e377141fab1ad9f2a0071c96694
1 file changed