Show low light soft-error on FACE_TIMEOUT

If it meets a threshold of 70% of the acquired
messages received by SysUI.

Test: atest KeyguardIndicationControllerTest
Test: atest BiometricMessageDeferralTest
Test: enroll face auth, go into a low-light area,
attempt face auth and see the "low light" message
Fixes: 244362700

Change-Id: I270c2459a89d087f9a9ea5de52a8c5179d9991ce