Make face unlock icon use correct theme attr

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<vector xmlns:android="http://schemas.android.com/apk/res/android"

        android:width="48.0dp"

        android:height="48.0dp"

        android:viewportWidth="48.0"

        android:viewportHeight="48.0">

    <path

        android:pathData="M24,0C10.8,0 0,10.8 0,24s10.8,24 24,24s24,-10.8 24,-24S37.200001,0 24,0zM24,7.2c3.96,0 7.2,3.24 7.2,7.2s-3.24,7.2 -7.2,7.2s-7.2,-3.24 -7.2,-7.2S20.040001,7.2 24,7.2zM24,41.279999c-6,0 -11.28,-3.12 -14.4,-7.68c0.12,-4.8 9.6,-7.44 14.4,-7.44s14.28,2.64 14.4,7.44C35.279999,38.16 30,41.279999 24,41.279999z"

        android:fillColor="?attr/wallpaperTextColor"/>

</vector>

                }

                break;

            case STATE_FACE_UNLOCK:

                iconRes = com.android.internal.R.drawable.ic_account_circle;

                iconRes = R.drawable.ic_account_circle;

                break;

            case STATE_FINGERPRINT:

                // If screen is off and device asleep, use the draw on animation so the first frame