Tag based logging control

Implement the tag based logging control.
You can set the logging level of specific
log tag in vendor/etc/gps.prop using this
format "LocSvc**=5". The priority of gps.prop
is higher that DEBUG_LEVEL in gps.conf.

Change-Id: I12fd7d881629842a9d02461be0afb6bf95b89bc3
CRs-Fixed: 2786409
3 files changed