Add mdns_improvement_for_25q2 aconfig flag

Bug: b/373270045
Test: TH
Change-Id: I9b20e33bc968e4c7e00e7c64fe6eb212df762547
diff --git a/core/java/android/net/flags.aconfig b/core/java/android/net/flags.aconfig
index f7dc790..a30cd5c 100644
--- a/core/java/android/net/flags.aconfig
+++ b/core/java/android/net/flags.aconfig
@@ -28,3 +28,11 @@
     purpose: PURPOSE_BUGFIX
   }
 }
+
+flag {
+  name: "mdns_improvement_for_25q2"
+  is_exported: true
+  namespace: "android_core_networking"
+  description: "Flag for MDNS quality, reliability and performance improvement in 25Q2"
+  bug: "373270045"
+}