Support Face Virtual HAL operation latency randomization

Bug: 294254230
Test: atest android.hardware.biometrics.face.*
Change-Id: I40b71a6eba91615d44b0bdcc977e3a51cec83ca1
diff --git a/private/property_contexts b/private/property_contexts
index 8860024..718eeb4 100644
--- a/private/property_contexts
+++ b/private/property_contexts
@@ -1557,7 +1557,6 @@
 persist.vendor.face.virtual.lockout_permanent_threshold u:object_r:virtual_face_hal_prop:s0 exact int
 vendor.face.virtual.no_human_face_detected u:object_r:virtual_face_hal_prop:s0 exact bool
 vendor.face.virtual.enrollment_hit u:object_r:virtual_face_hal_prop:s0 exact int
-vendor.face.virtual.operation_start_enroll_latency u:object_r:virtual_face_hal_prop:s0 exact int
 vendor.face.virtual.next_enrollment u:object_r:virtual_face_hal_prop:s0 exact string
 vendor.face.virtual.authenticator_id u:object_r:virtual_face_hal_prop:s0 exact int
 vendor.face.virtual.challenge u:object_r:virtual_face_hal_prop:s0 exact int
@@ -1565,8 +1564,9 @@
 vendor.face.virtual.operation_authenticate_fails u:object_r:virtual_face_hal_prop:s0 exact bool
 vendor.face.virtual.operation_detect_interaction_fails u:object_r:virtual_face_hal_prop:s0 exact bool
 vendor.face.virtual.operation_enroll_fails u:object_r:virtual_face_hal_prop:s0 exact bool
-vendor.face.virtual.operation_authenticate_latency u:object_r:virtual_face_hal_prop:s0 exact int
-vendor.face.virtual.operation_detect_interaction_latency u:object_r:virtual_face_hal_prop:s0 exact int
+vendor.face.virtual.operation_authenticate_latency u:object_r:virtual_face_hal_prop:s0 exact string
+vendor.face.virtual.operation_detect_interaction_latency u:object_r:virtual_face_hal_prop:s0 exact string
+vendor.face.virtual.operation_enroll_latency u:object_r:virtual_face_hal_prop:s0 exact string
 vendor.face.virtual.operation_authenticate_duration u:object_r:virtual_face_hal_prop:s0 exact int
 
 # properties for the virtual Fingerprint HAL