Merge "goldfish-opengl: differentiate goldfish/virtio-gpu via minigbm only" am: 8502cbb2f0

Original change: https://android-review.googlesource.com/c/device/generic/goldfish-opengl/+/1948114

Change-Id: I9baa6485f40fecca3d6390c7b3e46db3ed08af97