Make PackageInstaller prompt properly

After introducing the update owner, the privileged installers may need
user action to update an app. However, the install would abort because
PackageInstaller doesn't expect that. Need to revise PackageInstaller
to adopt the new mechanism.

Bug: 267712075
Test: atest CtsPackageInstallTestCases
Test: mannually install an app with update ownership via shell, and
      then try to update by a privileged installer.
Change-Id: Ifb9c41515753a124fc445cf352fb9e4dd55dad92