SF: Fix color transform for composited virtual displays

ag/6455586 inadvertently changed the condition to never skip it.

Bug: 149968803
Test: Overlay display is not doubly sepia when Night Light is on.
Test: libcompositionengine_test
Change-Id: Ic33ba3069be8544ada1304461ab881b39b9fd1f9
diff --git a/services/surfaceflinger/CompositionEngine/src/Display.cpp b/services/surfaceflinger/CompositionEngine/src/Display.cpp
index c345405..308ec5a 100644
--- a/services/surfaceflinger/CompositionEngine/src/Display.cpp
+++ b/services/surfaceflinger/CompositionEngine/src/Display.cpp
@@ -268,12 +268,9 @@
 }
 
 bool Display::getSkipColorTransform() const {
-    if (!mId) {
-        return false;
-    }
-
-    auto& hwc = getCompositionEngine().getHwComposer();
-    return hwc.hasDisplayCapability(*mId, HWC2::DisplayCapability::SkipClientColorTransform);
+    const auto& hwc = getCompositionEngine().getHwComposer();
+    return mId ? hwc.hasDisplayCapability(*mId, HWC2::DisplayCapability::SkipClientColorTransform)
+               : hwc.hasCapability(HWC2::Capability::SkipClientColorTransform);
 }
 
 bool Display::anyLayersRequireClientComposition() const {