Fix clocks showing colored style for pulsing notifications

Bug: 338600948
Test: atest ClockEventControllerTest. Manually test by turning off AOD, adding a 5s delayed notification in go/notify-apk and turning off the screen by pressing
power button; Observe the screen wakes up after 5s and color is shown in
AOD style.
Flag: ACONFIG com.android.systemui.migrate_clocks_to_blueprint STAGING

Change-Id: I068a0be3b77ce02b2f4fcea8c23a7bc358fd8ed9