This is in preparation to introduce new java buildtargets that will use the `libaom_av1_encoder` buildtarget instead. bug: webrtc:13573 Change-Id: I23e80653943ede576657acc17bcc5602cb0a4d5d Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/254540 Reviewed-by: Sergey Silkin <ssilkin@webrtc.org> Commit-Queue: Philip Eliasson <philipel@webrtc.org> Cr-Commit-Position: refs/heads/main@{#36171}