Enable video telephony support. (3/4)

- Modified test connection service to set the video capability on its
phone accounts to enable testing of enabling video.
- Note: Had to change package/permission on the test app so that it could
register phone accounts.

Bug: 19062133
Change-Id: I391ca128a724a1bab2e4ffd5c5f6945e7cc057ec
1 file changed