SystemUI: Add wifi/cell tiles

Enable the newly added AOSP tiles with a few improvements:
* Make the WiFi tile actually disable WiFi instead of "pausing"
* In the expanded state, when clicking on the secondary action
  change the popup dialog title from "Internet" to "Wi-Fi".

This requires enabling the qs_split_internet_tile aconfig flag.

Co-authored-by: Michael Bestas <mkbestas@lineageos.org>
Change-Id: I9911d675e3c3c6c0eedb0b9e11efdcbae4033e19
Signed-off-by: Pranav Vashi <neobuddy89@gmail.com>