Reland WM Extensions for all devices

The revert is because there is a prebuilt app using an outdated
unreleased sidecar API (from 2022).

1. Guard SidecarProvider with flag as well.
2. Catch the AbstractMethodError for SidecarCallback access.

Bug: 306666082
Test: pass the failure test
Change-Id: Ic1535791d93d384f03b46e7ca9b0f2db0f84a01a