Add DeviceSdkLevel - an SdkLevel equivalent for host-side tests. Bug: 187807290 Test: m Change-Id: I58cba60b7390b9fa7ef38558f18adb7f1f4286ef Merged-In: I58cba60b7390b9fa7ef38558f18adb7f1f4286ef (cherry picked from commit 09925009615b65e1329e427ca152eec548ba4bd6)