Added new string.

Fixes: 141762646
Test: Verified that string translates to spanish after changing
the language.

Change-Id: I48e34de15460c93c8f50d26821c4d64984f20c6d

src/com/android/settings/biometrics/face/FaceEnrollIntroduction.java

@@ -81,7 +81,7 @@ public class FaceEnrollIntroduction extends BiometricEnrollIntroduction {
             final RequireScrollMixin requireScrollMixin = getLayout().getMixin(
                     RequireScrollMixin.class);
             requireScrollMixin.requireScrollWithButton(this, agreeButton,
-                    R.string.wifi_more,
+                    R.string.security_settings_face_enroll_introduction_more,
                     button -> {
                         onNextButtonClick(button);
                     });