Fix wrong translation for phone_hint in Spanish

Google seems to have it fixed on master branch but it is not yet on lollipop one.
This fixes the trouble where the system tells you on the lockscreen to
swipe to the left to open camera and also swipe to the left for unlock phone
when it should be swipe to the right for unlock phone.

Change-Id: Ic9bba128e1b617c58c77c60acfdcffc6918da3f8