Add owner and target release comment for all Android Telephony flags

Test: manual
Bug: 329513737
Change-Id: Ie430da1e475d18e32bd2f3ba2ad38a1113c359c1
diff --git a/flags/messaging.aconfig b/flags/messaging.aconfig
index 30ec833..57cfdb4 100644
--- a/flags/messaging.aconfig
+++ b/flags/messaging.aconfig
@@ -1,5 +1,6 @@
 package: "com.android.internal.telephony.flags"
 
+# OWNER=linggm TARGET=24Q1
 flag {
   name: "reject_bad_sub_id_interaction"
   namespace: "telephony"
@@ -7,6 +8,7 @@
   bug: "294125411"
 }
 
+# OWNER=hwangoo TARGET=24Q2
 flag {
   name: "sms_domain_selection_enabled"
   namespace: "telephony"
@@ -14,6 +16,7 @@
   bug: "262804071"
 }
 
+# OWNER=tnd TARGET=24Q3
 flag {
   name: "mms_disabled_error"
   is_exported: true