Don't show face messasges if there's a fp message showing (within 3.5s)

Test: atest AlternateBouncerMessageAreaViewModelTest
Fixes: 327252680
Flag: ACONFIG com.android.systemui.device_entry_udfps_refactor STAGING
Change-Id: Ib63346fc3e97922ca0fa5f9e42dc2a6bba58b172
4 files changed