Restrict USB poups while setup is in progress

Test: Manually verified that USB popups are not displayed while setup is
in progress. atest UsbManagerTests.
Bug: 332757346
Flag: com.android.server.usb.flags.allow_restriction_of_overlay_activities
(cherry picked from https://googleplex-android-review.googlesource.com/q/commit:76feb3795672beacbc534683825bb7f871157e2f)
Merged-In: I7de666b9c807f0458bf0df291bab4da2cb98f886
Change-Id: I7de666b9c807f0458bf0df291bab4da2cb98f886
24D1-dev is based on 24Q2-release. Therefore, we merged this CL to 24D1-dev.