adds a flag for hasArrSupport

BUG: 361433651
Test: N/A
Flag: com.android.server.display.feature.flags.enable_has_arr_support
Change-Id: I2ea2bfd93c9be60894a26c5d07298b253e71b487
diff --git a/services/core/java/com/android/server/display/feature/display_flags.aconfig b/services/core/java/com/android/server/display/feature/display_flags.aconfig
index 2f04d9e..6c966d3 100644
--- a/services/core/java/com/android/server/display/feature/display_flags.aconfig
+++ b/services/core/java/com/android/server/display/feature/display_flags.aconfig
@@ -392,3 +392,11 @@
       purpose: PURPOSE_BUGFIX
     }
 }
+
+flag {
+    name: "enable_has_arr_support"
+    namespace: "core_graphics"
+    description: "Flag for an API to get whether display supports ARR or not"
+    bug: "361433651"
+    is_fixed_read_only: true
+}