Add cc_aconfig_library for display_flags

Bug: 310026579
Test: presubmit
Change-Id: I535e5c0201e025a881d898f0b6ee22700fee99de
diff --git a/AconfigFlags.bp b/AconfigFlags.bp
index 3391698..a7a1bf8 100644
--- a/AconfigFlags.bp
+++ b/AconfigFlags.bp
@@ -664,6 +664,11 @@
     defaults: ["framework-minus-apex-aconfig-java-defaults"],
 }
 
+cc_aconfig_library {
+    name: "android.server.display.flags-aconfig-cc",
+    aconfig_declarations: "display_flags",
+}
+
 java_aconfig_library {
     name: "com.android.internal.foldables.flags-aconfig-java",
     aconfig_declarations: "fold_lock_setting_flags",