Fix failing settings tests

super.getSystemService(NotificationManager.class) has causing a
recursive call to itself which caused stack overflow and crashing the
tests.

Also fixed some tests that weren't updated during a prior broadcast
receiver audit.

Bug: 268489482
Bug: 268488831
Bug: 268488865
Test: atest
com.android.car.settings.notifications.NotificationAccessConfirmationActivityTest
&& atest
com.android.car.settings.datetime.TimeZonePickerPreferenceControllerTest
&& atest
com.android.car.settings.datetime.TimePickerPreferenceControllerTest &&
atest com.android.car.settings.datetime.DatePickerPreferenceControllerTest

Change-Id: I97747ee424a9bd0d0bb34b4d3565a041f1c4ec0e
Merged-In: I97747ee424a9bd0d0bb34b4d3565a041f1c4ec0e
(cherry picked from commit 162ca442e28d30fdde49faea0a5c4686be4e2106)