Move QC's title contentDescription into photo

In Talkback, the contact photo will now read <Contact Name>
instead of "contact photo". The title textview will no longer be
readable by Talkback to avoid redundancy.

I didn't delete the @string/description_contact_photo since
another View uses it.

Bug: 17198755
Change-Id: I25384ba72e6222ac24d5dd20c2bf32326d3dca13