Update setHdrConversionStrategy to return the preferredHdrOutput type

Bug: 268336382
Test: atest libsurfaceflinger_unittest
Test: atest libgui_test
Change-Id: I35108601a1b675f62fc02894ffee4f4e46bb892f
diff --git a/services/surfaceflinger/DisplayHardware/AidlComposerHal.h b/services/surfaceflinger/DisplayHardware/AidlComposerHal.h
index a5ddf74..d163ff2 100644
--- a/services/surfaceflinger/DisplayHardware/AidlComposerHal.h
+++ b/services/surfaceflinger/DisplayHardware/AidlComposerHal.h
@@ -238,7 +238,7 @@
     void onHotplugConnect(Display) override;
     void onHotplugDisconnect(Display) override;
     Error getHdrConversionCapabilities(std::vector<HdrConversionCapability>*) override;
-    Error setHdrConversionStrategy(HdrConversionStrategy) override;
+    Error setHdrConversionStrategy(HdrConversionStrategy, Hdr*) override;
 
 private:
     // Many public functions above simply write a command into the command