Fixed autofill forged package check to only compare the package name.

Otherwise, it will log false negatives when app launches a new activity in the
same autofill session. Example:

04-18 19:34:32.392  5423  7199 W AutofillSession: Activity ComponentInfo{com.netgear.WiFiAnalytics/com.netgear.WiFiAnalytics.WiFiAnalyticsWifiRoomSignal} forged different component on AssistStructure: ComponentInfo{com.netgear.WiFiAnalytics/com.netgear.WiFiAnalytics.WiFiAnalyticsWifiAnalyzerTab}

Fixes: 78235438
Bug: 69981710
Test: manual verification, cannot be CTS tested.
Test: CtsAutoFillServiceTestCases

Change-Id: I0408cd159c2be22841a1f6c36a4a2c17e59a6219