Change default sms flag to bugfix workflow

Bug: 323318088

Test: N/A
Change-Id: I2d1ac45e847dfef754eef298ce9b756eb8a77e39
diff --git a/core/java/android/app/admin/flags/flags.aconfig b/core/java/android/app/admin/flags/flags.aconfig
index cbd8e5b..10954ab 100644
--- a/core/java/android/app/admin/flags/flags.aconfig
+++ b/core/java/android/app/admin/flags/flags.aconfig
@@ -117,6 +117,9 @@
     namespace: "enterprise"
     description: "Exempt the default sms app of the context user for suspension when calling setPersonalAppsSuspended"
     bug: "309183330"
+    metadata {
+      purpose: PURPOSE_BUGFIX
+    }
 }
 
 flag {