Android Q is Android 10

Bug: 129683166
Bug: 129943426
Test: source build/envsetup.sh && lunch blueline-userdebug && m -j cts
docs tests
Test: Flashed build to blueline, ensured it booted
Test: Verified "10" under Settings -> About phone -> Android version
Change-Id: Idec1479d93876bc57711c31e70f34008a05881d1