wifi: Using registerReceiverForAllUsers - part#3

To ensure correct Wi-Fi functionality after a user switch,
system status settings are now retrieved using registerReceiverForAllUsers.
Previously, registering the intent before the switch resulted in incorrect
settings.

Flag: com.android.wifi.flags.monitor_intent_for_all_users
Bug: 390257834
Test: atest -c FrameworksWifiTests
Test: Manuel test
Change-Id: Ifa3d82878366ceda51e6f419e87e1ca378097889
9 files changed