Require signature permission when controlling biometric dialog

Fixes: 113714857

Test: BiometricPromptDemo still works
Change-Id: I4385494a710d44b11fa2de93c9dc053fd911d877
diff --git a/core/res/AndroidManifest.xml b/core/res/AndroidManifest.xml
index 9ab55d6..2bf16d3 100644
--- a/core/res/AndroidManifest.xml
+++ b/core/res/AndroidManifest.xml
@@ -3756,6 +3756,10 @@
     <permission android:name="android.permission.USE_BIOMETRIC_INTERNAL"
         android:protectionLevel="signature" />
 
+    <!-- Allows the system to control the BiometricDialog (SystemUI). Reserved for the system. @hide -->
+    <permission android:name="android.permission.MANAGE_BIOMETRIC_DIALOG"
+        android:protectionLevel="signature" />
+
     <!-- Allows an app to reset face authentication attempt counter. Reserved for the system. @hide -->
     <permission android:name="android.permission.RESET_FACE_LOCKOUT"
         android:protectionLevel="signature" />