Content provider does not directly use this intent. But it is fired by
the contacts app to request the voicemail source to fetch voicemail
audio of a single voicemail message.
The constant needs to live in the contracts file to serve as a common
definition between contacts and voicemail source apps.
Bug: 5114261
Change-Id: Ibf7b2a4c871d3561d2ca50d03f8182352fadd3ab
267a2ec040