Bug 882899 - [SMS][MMS] Utils.getContactCarrier throws TypeError if tel not found (found is undefined)

https://bugzilla.mozilla.org/show_bug.cgi?id=882899
Signed-off-by: Rick Waldron <waldron.rick@gmail.com>
Merge pull request #10374 from rwldrn/882899

Bug 882899 - [SMS][MMS] Utils.getContactCarrier throws TypeError if tel not found (found is undefined)