Bump tools version to 25.1.7 for emulator 2.0 release

cd sdk/eclipse
./scripts/update_version.sh 25.1.6 25.1.7
manually edit files/tools_source.properties

Change-Id: Id59b27bd1d5cb83524b7754ab6e388507a4fb965
(cherry picked from commit 0c0f0947b90045cffeeed23494768a0c913a8313)
50 files changed