Register PackageChangedReceiver to AppSearchManagerService.

The Receiver could receive ACTION_PACKAGE_FULLY_REMOVED and
ACTION_PACKAGE_DATA_CLEARED broadcast and clean the package data.

Bug: 145759910
Test: atest --rebuild-module-info CtsAppSearchHostTestCases
Change-Id: I81a1f5cae823ed4780374b434b7a6be43d040cde