Expose UDFPS to customization picker (1/2)

We need this info to position the clock controller's view at the picker
side correctly.

Test: Manually tested
Bug: 387534445
Flag: com.android.systemui.shared.new_customization_picker_ui
Change-Id: Ifcfe6e6f54eabbb69ff1bba8d2199bda95e1d971