SF: Add a flag vrr_bugfix_dropped_frame

BUG: 343603085
Test: atest libsurfaceflinger_unittest
Flag: com.android.graphics.surfaceflinger.flags.vrr_bugfix_dropped_frame
Change-Id: Ib53b48a704e7752773800018a579a1d641badde6
diff --git a/services/surfaceflinger/common/FlagManager.cpp b/services/surfaceflinger/common/FlagManager.cpp
index b7ec6e0..9b46779 100644
--- a/services/surfaceflinger/common/FlagManager.cpp
+++ b/services/surfaceflinger/common/FlagManager.cpp
@@ -135,6 +135,7 @@
     DUMP_READ_ONLY_FLAG(vulkan_renderengine);
     DUMP_READ_ONLY_FLAG(renderable_buffer_usage);
     DUMP_READ_ONLY_FLAG(vrr_bugfix_24q4);
+    DUMP_READ_ONLY_FLAG(vrr_bugfix_dropped_frame);
     DUMP_READ_ONLY_FLAG(restore_blur_step);
     DUMP_READ_ONLY_FLAG(dont_skip_on_early_ro);
     DUMP_READ_ONLY_FLAG(protected_if_client);
@@ -239,6 +240,7 @@
 FLAG_MANAGER_READ_ONLY_FLAG(dont_skip_on_early_ro, "")
 FLAG_MANAGER_READ_ONLY_FLAG(protected_if_client, "")
 FLAG_MANAGER_READ_ONLY_FLAG(vrr_bugfix_24q4, "");
+FLAG_MANAGER_READ_ONLY_FLAG(vrr_bugfix_dropped_frame, "")
 FLAG_MANAGER_READ_ONLY_FLAG(ce_fence_promise, "");
 FLAG_MANAGER_READ_ONLY_FLAG(graphite_renderengine, "debug.renderengine.graphite")
 FLAG_MANAGER_READ_ONLY_FLAG(latch_unsignaled_with_auto_refresh_changed, "");