Fix BP content description when face is not recognized

Test: Manual, verify correct string is announced by talkback
Fixes: 293547981
Change-Id: I0c46ef24c09bb2972c05c503891eeb6fcb90357b
diff --git a/packages/SystemUI/src/com/android/systemui/biometrics/AuthBiometricFaceIconController.kt b/packages/SystemUI/src/com/android/systemui/biometrics/AuthBiometricFaceIconController.kt
index e60d4e1..0c7d56f 100644
--- a/packages/SystemUI/src/com/android/systemui/biometrics/AuthBiometricFaceIconController.kt
+++ b/packages/SystemUI/src/com/android/systemui/biometrics/AuthBiometricFaceIconController.kt
@@ -100,6 +100,9 @@
             )
         } else if (newState == STATE_ERROR && oldState != STATE_ERROR) {
             animateIconOnce(R.drawable.face_dialog_dark_to_error)
+            iconView.contentDescription = context.getString(
+                    R.string.keyguard_face_failed
+            )
         } else if (oldState == STATE_AUTHENTICATING && newState == STATE_AUTHENTICATED) {
             animateIconOnce(R.drawable.face_dialog_dark_to_checkmark)
             iconView.contentDescription = context.getString(