Change Summary:
* Changes taken from change#812357;
* Structure definitions for GNSS SV Measurement and GNSS SV
Polynomial to report it to ULP and to external DR module;
* New function additions in LocApiBase, LocAdapterBase and
LocEngAdapter to report SV Measurement and SV Polynomial;
* definition and changes to detect "auto" platform in loc_target;
* enable SV Measurement and SV Polynomial report for "auto"
platform;
Change-Id: I5ac5ee5c44e72e657b16515e37637c9a5c64e638