Update Location & GPS tile strings

The new KK Location tile actually is different to the old GPS one.
It does toggle whatever Location mode you have set (high accuracy, battery saving, device only), not just GPS.
So it's capable of toggling Google's Wi-Fi location service (provided by GSF) as well.

Speaking about which: it could use an option in the "override default tile behaviour" section as well, as you're currently still required to longpress it :)