Revert "Change instance_name argument as webrtc_device_id" am: 6e56aba22d am: 98fd406922 am: 4b86230a39 am: dab42943c5 am: 8726d6817e am: 6c3b494224

Original change: https://android-review.googlesource.com/c/platform/external/openwrt-prebuilts/+/2630210

Change-Id: Ibdb37421f4ee29eb577ad1efa5748ea15b8dc291
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>