Fix broken test case 'testOverlayInfoStateTransitions'

Commit e0b984e8054 "Diff overlays between PackageManagerService and
OverlayManagerService" removed the OverlayInfo.STATE_TARGET_UPGRADING
state. Update the OverlayManagerServiceImplTests tests accordingly.

Bug: 130257545
Test: atest 'com.android.server.om.OverlayManagerServiceImplTests#testOverlayInfoStateTransitions'
Change-Id: I06fed8cfe4daf0206843d140ae7ab594cc89ab09
2 files changed