Draw gainmaps in HDR

Test: manual
Bug: 266628247
Change-Id: Iad0234089913637f9cddcb39d8fc32badabf3865
diff --git a/libs/hwui/Android.bp b/libs/hwui/Android.bp
index eeed226..9e3f115 100644
--- a/libs/hwui/Android.bp
+++ b/libs/hwui/Android.bp
@@ -511,6 +511,7 @@
         "canvas/CanvasOpBuffer.cpp",
         "canvas/CanvasOpRasterizer.cpp",
         "effects/StretchEffect.cpp",
+        "effects/GainmapRenderer.cpp",
         "pipeline/skia/HolePunch.cpp",
         "pipeline/skia/SkiaDisplayList.cpp",
         "pipeline/skia/SkiaRecordingCanvas.cpp",