move vts_treble_vintf_test to a sub dir

Test: make vts -j30 TARGET_PRODUCT=aosp_arm64 && vts-tradefed run commandAndExit vts --skip-all-system-status-check --primary-abi-only --skip-preconditions --module VtsTrebleVintfTest -l INFO
Bug: 36813739
Change-Id: I39784317dfcd65096f035eb937b15ad77773abe8
5 files changed