Move gnss files to server/location/gnss

Test: build and run cuttlefish
Bug: 150810542
Change-Id: I0b83ba5850249e3111b80fcb774dee8121d0a048
Merged-In: I7d966b3e26f1d5e5aadf0085d0d0bfe51b9dfc1a
30 files changed