Merge "Revert "Rename `libsyn` to `libsyn2`"" into main am: 6f634869e6

Original change: https://android-review.googlesource.com/c/platform/development/+/2736875

Change-Id: I921a7565aa786185486f8b32598e817eb36433b3
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>