[Bug-897942] [SMS] contact type(Home,Work,Mobile) always displayed in English for other languages also . r=Steve Chung

https://bugzilla.mozilla.org/show_bug.cgi?id=897942

STR:
1. Message -> New Message
2. In the recipient, type the first letter of the contact 
3. Check the Label name in the retrieved search list.
Actual:The Label type is always shown in English
Expected: The Label types should be shown in respective languages