Add tests for ClientController#verifyClientAndPackageMatch

Bug: 314150112
Test: atest --host FrameworksInputMethodSystemServerTests_host:com.android.server.inputmethod.ClientControllerTest -c
Test: atest FrameworksInputMethodSystemServerTests:com.android.server.inputmethod.ClientControllerTest -c
Change-Id: I7058aab4b8b7308b285e7a90d42e17b458d5e9c9
1 file changed