Add definition of VFY to lint guide
Add definition of VFY to lint guide

PiperOrigin-RevId: 398338177
Change-Id: Ic8bba610930b7e3d3066be7ec94e563226bda146

androidx/androidx,AndroidX/androidx,androidx/androidx,androidx/androidx,androidx/androidx,androidx/androidx,androidx/androidx,AndroidX/androidx,AndroidX/androidx,AndroidX/androidx,androidx/androidx,AndroidX/androidx,AndroidX/androidx,AndroidX/androidx,androidx/androidx,androidx/androidx,androidx/androidx,AndroidX/androidx,AndroidX/androidx,AndroidX/androidx