Update setHdrConversionStrategy to return the preferredHdrOutput type

Bug: 268336382
Test: atest libsurfaceflinger_unittest
Test: atest libgui_test
Change-Id: I35108601a1b675f62fc02894ffee4f4e46bb892f
diff --git a/libs/gui/tests/Surface_test.cpp b/libs/gui/tests/Surface_test.cpp
index be1ef8e..e00cdff 100644
--- a/libs/gui/tests/Surface_test.cpp
+++ b/libs/gui/tests/Surface_test.cpp
@@ -827,7 +827,8 @@
     }
 
     binder::Status setHdrConversionStrategy(
-            const gui::HdrConversionStrategy& /*hdrConversionStrategy*/) override {
+            const gui::HdrConversionStrategy& /*hdrConversionStrategy*/,
+            int32_t* /*outPreferredHdrOutputType*/) override {
         return binder::Status::ok();
     }