Merge "Drop -gsplit-dwarf" am: 5c26820f4d am: caab9a49f8 am: 856371452c

Original change: https://android-review.googlesource.com/c/platform/external/webrtc/+/2400096

Change-Id: Ia344096c19abed857a8c6a332eeb36282be82bc9
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>