Replace the resource flag to be used for google sans flex font changes

This new flag is going to be a bug fix flag for easier process
requirements.

Bug: 393609690
Test: Verified compilation worked well and font actually built
successfully in both gradle and make.
Flag: com.android.launcher3.gsf_res

Change-Id: Ic94e52e7fa58efb20fd867cfc661d6f7341fa4ef
diff --git a/aconfig/launcher.aconfig b/aconfig/launcher.aconfig
index cd8b891..d3c5c01 100644
--- a/aconfig/launcher.aconfig
+++ b/aconfig/launcher.aconfig
@@ -566,11 +566,14 @@
 }
 
 flag {
-  name: "google_sans_flex_font"
+  name: "gsf_res"
   namespace: "launcher"
   description: "Adds refresh for font family. Needs to be fixed to be used in resources."
   bug: "395145453"
   is_fixed_read_only: true
+  metadata {
+    purpose: PURPOSE_BUGFIX
+  }
 }
 
 flag {