Fix GnssMeasurement JNI for 1.1

Passing the GnssMeasurement JavaObject as reference
Harmonizing variable name styles for 1.0 vs. 1.1

Change-Id: Ia28c159cbda91f89e7387bcf3c404c41375e6be8
Fixes: 74021441
Test: Runs on device, and works with GnssLogger
(cherry picked from commit 7155f8a9f61a68c3a33a72893d01f64f0d890bd8)
1 file changed