Revert^2 "Mark @FlaggedApi flags as exported"

dae4dcd

Change-Id: I547b027fc2ffd710f47dfab5f2e4320914a9857a

Author: amhk

services/surfaceflinger/surfaceflinger_flags_new.aconfig

@@ -31,6 +31,7 @@ flag {
   description: "New SDK Surface#setFrameRate API and Surface.FrameRateParams for Android 16"
   bug: "356987016"
   is_fixed_read_only: true
+  is_exported: true
 } # arr_setframerate_api
 
 flag {
@@ -39,6 +40,7 @@ flag {
   description: "New SDK SurfaceControl.Transaction#setFrameRate API for Android 16"
   bug: "356987016"
   is_fixed_read_only: true
+  is_exported: true
 } # arr_surfacecontrol_setframerate_api
 
 flag {