Upgrade voicemail_status and calls tables for visual voicemail.

Do a database upgrade for MNC in order to add multi-SIM fields to the
voicemail_status table and add "dirty" and "deleted" fields to
voicemails table. Add functionality in DbModifierWithNotification to
handle "dirty" and "deleted" appropriately. This new functionality is
tested in VoicemailProviderTest and CallLogProviderTest.

Bug:19236241
Change-Id: I25ebba0bdb5f720e48beaf17dbdd2846e494da74
6 files changed