This CL adds PixelWifiOverlay2024.
Also, disable config_wifiSaeUpgradeEnabled because it not be support in this stage,
will re-enable it after the feature is ready.
Test: Wifi overlay is workable
Bug: 299032759
Change-Id: I6b3efdeeaca7df2b0ade8137d76a1f5a74a7f98f
Renaming overlay back to the original "charging" name for backwards
compatibility.
Bug: 264610460
Test: none
Change-Id: Ib303a56197bf58689590a3e3d15a42748241654b