Merge "[magma] Add magma encoder" am: 57c5090243

Original change: https://android-review.googlesource.com/c/device/generic/goldfish-opengl/+/2417653

Change-Id: I59aae9ae7cacd6094139e2a8178be80a5e0a4dc7
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>