Fixed WrongPasswordNotifier for headless system user.

It must use the current user in the PendingIntent that launches
Settings.

Test: manual verification with CtsVerifier (adb shell am start com.android.cts.verifier/.managedprovisioning.WifiLockdownTestActivity)
Fixes: 206857094

Change-Id: Iffd469448404cb974d491a240ff792ae0a521ebe
1 file changed