[sf-newfe] fix hdr layer info listeners

Listener updates are tracked when the
hdr/sdr ratio changes and this was broken
with new FE. Fix this by passing the ratio
to the legacy layer object.

Bug: 297071479
Test: see bug for test steps
Change-Id: Ie672c06d43b25d466e2553b909a5b41b4f458aa1
diff --git a/services/surfaceflinger/SurfaceFlinger.cpp b/services/surfaceflinger/SurfaceFlinger.cpp
index 1ef381c..f34f495 100644
--- a/services/surfaceflinger/SurfaceFlinger.cpp
+++ b/services/surfaceflinger/SurfaceFlinger.cpp
@@ -5330,6 +5330,11 @@
     if (what & layer_state_t::eDataspaceChanged) {
         if (layer->setDataspace(s.dataspace)) flags |= eTraversalNeeded;
     }
+    if (what & layer_state_t::eExtendedRangeBrightnessChanged) {
+        if (layer->setExtendedRangeBrightness(s.currentHdrSdrRatio, s.desiredHdrSdrRatio)) {
+            flags |= eTraversalNeeded;
+        }
+    }
     if (what & layer_state_t::eBufferChanged) {
         std::optional<ui::Transform::RotationFlags> transformHint = std::nullopt;
         frontend::LayerSnapshot* snapshot = mLayerSnapshotBuilder.getSnapshot(layer->sequence);