Modify surfaceflinger_flags for consistency.

Adding flag name at the end of closing bracket for ce_fence_promise
to match other flag formats.

Bug: b/294936197
Test: presubmit
Change-Id: If41256bfb6b4e7e0de4f7c5ab23f9ff4e01efdf3
diff --git a/services/surfaceflinger/surfaceflinger_flags_new.aconfig b/services/surfaceflinger/surfaceflinger_flags_new.aconfig
index 0a5cde3..a8fd6b7 100644
--- a/services/surfaceflinger/surfaceflinger_flags_new.aconfig
+++ b/services/surfaceflinger/surfaceflinger_flags_new.aconfig
@@ -19,7 +19,7 @@
   metadata {
     purpose: PURPOSE_BUGFIX
   }
-}
+ } # ce_fence_promise
 
 flag {
   name: "dont_skip_on_early_ro2"