gps: Lower debug level

* Kill logcat spam

Change-Id: I20d1f698d3c2d1b56e79f6eb6c5c17069e43c60f
msm8974 - Improving GPS Accuracy

Change-Id: I8c3071f745fd8afb37da3d3bfcd6d33045bbd93a
Signed-off-by: STELIX <ssspinni@gmail.com>