Add flag for SurfaceControl.Transaction#setFrameRate API

Bug: 356987016
Test: presubmits, local config test
Flag: com.android.graphics.surfaceflinger.flags.arr_surfacecontrol_setframerate_api
Change-Id: Id6beebcbfcea794aa62517306f01d5fa66397034
diff --git a/services/surfaceflinger/surfaceflinger_flags_new.aconfig b/services/surfaceflinger/surfaceflinger_flags_new.aconfig
index f758879..2cb3989 100644
--- a/services/surfaceflinger/surfaceflinger_flags_new.aconfig
+++ b/services/surfaceflinger/surfaceflinger_flags_new.aconfig
@@ -21,12 +21,20 @@
 flag {
   name: "arr_setframerate_api"
   namespace: "core_graphics"
-  description: "New setFrameRate API for Android 16"
+  description: "New SDK Surface#setFrameRate API and Surface.FrameRateParams for Android 16"
   bug: "356987016"
   is_fixed_read_only: true
 } # arr_setframerate_api
 
 flag {
+  name: "arr_surfacecontrol_setframerate_api"
+  namespace: "core_graphics"
+  description: "New SDK SurfaceControl.Transaction#setFrameRate API for Android 16"
+  bug: "356987016"
+  is_fixed_read_only: true
+} # arr_surfacecontrol_setframerate_api
+
+flag {
   name: "ce_fence_promise"
   namespace: "window_surfaces"
   description: "Moves logic for buffer release fences into LayerFE"