Add FMQ support in PowerAdvisor

Bug: 284324521
Flag: android.os.adpf_use_fmq_channel_fixed
Test: atest PowerAdvisorTest
Change-Id: Iec3d861d1a7603cbe6b924453344725431573ed7
diff --git a/services/surfaceflinger/common/FlagManager.cpp b/services/surfaceflinger/common/FlagManager.cpp
index f074b7d..45b3290 100644
--- a/services/surfaceflinger/common/FlagManager.cpp
+++ b/services/surfaceflinger/common/FlagManager.cpp
@@ -249,5 +249,6 @@
 /// Trunk stable readonly flags from outside SurfaceFlinger ///
 FLAG_MANAGER_READ_ONLY_FLAG_IMPORTED(idle_screen_refresh_rate_timeout, "",
                                      com::android::server::display::feature::flags)
+FLAG_MANAGER_READ_ONLY_FLAG_IMPORTED(adpf_use_fmq_channel_fixed, "", android::os)
 
 } // namespace android