[SF] Use render rate to classify BufferStuffing state

Test: make
BUG: 390776340
Flag: EXEMPT bug fix
Change-Id: I6b282d205cccb3861ea77d57a0dc0d911b7504e0
diff --git a/services/surfaceflinger/FrameTimeline/FrameTimeline.cpp b/services/surfaceflinger/FrameTimeline/FrameTimeline.cpp
index 86d7388..daf2732 100644
--- a/services/surfaceflinger/FrameTimeline/FrameTimeline.cpp
+++ b/services/surfaceflinger/FrameTimeline/FrameTimeline.cpp
@@ -651,7 +651,7 @@
             // We try to do this by moving the deadline. Since the queue could be stuffed by more
             // than one buffer, we take the last latch time as reference and give one vsync
             // worth of time for the frame to be ready.
-            nsecs_t adjustedDeadline = mLastLatchTime + refreshRate.getPeriodNsecs();
+            nsecs_t adjustedDeadline = mLastLatchTime + displayFrameRenderRate.getPeriodNsecs();
             if (adjustedDeadline > mActuals.endTime) {
                 mFrameReadyMetadata = FrameReadyMetadata::OnTimeFinish;
             } else {