Rename geotz / geolocation -> location

Rename com.android.timezone.geotz and com.android.timezone.geolocation
to com.android.timezone.location for more consistency with server code.

Changes mostly performed with automated refactoring tools, some
search-and-replace.

Bug: 175119330
Test: build / boot
Test: ./run-data-pipeline.sh
Change-Id: I3331a53c88b86b128ac5aa5904a3bf78945f4001
156 files changed