qcom/gps: Fix build with gcc 4.8

log_util.h uses constructs that gcc 4.8 warns about because they
can be interpreted as C++11 string literals.
Since qcom/gps is built with -Werror, this causes the build to fail.

Change-Id: I0b9fab01a4b1d7b269e33ba3d6014da917422b7d
Signed-off-by: Bernhard Rosenkränzer <Bernhard.Rosenkranzer@linaro.org>
Merge remote-tracking branches 'linaro/linaro_android_4.2.2' and 'rqkang/cm-10.1' into cm-10.1