Currently the min of the default bitrate and configured bitrate is used. Add default bitrate limits for 1080p. Bug: b/396641469 Change-Id: Iabf243627a6dcbaa1e2f14d4f201c9482f3958d5 Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/377123 Reviewed-by: Sergey Silkin <ssilkin@webrtc.org> Commit-Queue: Åsa Persson <asapersson@webrtc.org> Cr-Commit-Position: refs/heads/main@{#43923}