GNSS Metrics Fix.

Proto string wasn't decoding properly because it had extra information.

Bug: 145825965
Test: On device using raw metrics forced upload
	adb shell cmd jobscheduler run --force
	com.android.connectivity.metrics 6

Change-Id: Ifcf03b349c7c3997b25d06b15a0622fa013a1e66
1 file changed