Add additional flag for FMQ SF

This flag helps decouple the SF FMQ rollout from the rest of the FMQ
rollout

Bug: 284324521
Bug: 315894228
Flag: com.android.graphics.surfaceflinger.flags.adpf_fmq_sf
Flag: android.os.adpf_use_fmq_channel_fixed
Test: atest PowerAdvisorTest
Change-Id: I101fb3861fb7c03c5d070c065acf1069bf90ccc6
diff --git a/services/surfaceflinger/common/FlagManager.cpp b/services/surfaceflinger/common/FlagManager.cpp
index 12d6138..ea108c7 100644
--- a/services/surfaceflinger/common/FlagManager.cpp
+++ b/services/surfaceflinger/common/FlagManager.cpp
@@ -116,6 +116,7 @@
     DUMP_SERVER_FLAG(adpf_use_fmq_channel);
 
     /// Trunk stable readonly flags ///
+    DUMP_READ_ONLY_FLAG(adpf_fmq_sf);
     DUMP_READ_ONLY_FLAG(connected_display);
     DUMP_READ_ONLY_FLAG(enable_small_area_detection);
     DUMP_READ_ONLY_FLAG(frame_rate_category_mrr);
@@ -222,6 +223,7 @@
                                 "SkiaTracingFeature__use_skia_tracing")
 
 /// Trunk stable readonly flags ///
+FLAG_MANAGER_READ_ONLY_FLAG(adpf_fmq_sf, "")
 FLAG_MANAGER_READ_ONLY_FLAG(connected_display, "")
 FLAG_MANAGER_READ_ONLY_FLAG(enable_small_area_detection, "")
 FLAG_MANAGER_READ_ONLY_FLAG(frame_rate_category_mrr, "debug.sf.frame_rate_category_mrr")