Check ProjectBackwards property for childrens after children's syncProperties().

Children's ProjectBackwards is not applied. So it's skipped so far.
This fix a problem that first ripple bg is not shown properly.
:It uses ProjectBackwards&ProjectReceiver concept.

For deeper understanding, refer to
https://partnerissuetracker.corp.google.com/issues/173476923

Test: aosp build , Full test on samsung mobile device
Change-Id: I36a1bc95673093ba2c886703974bf672c53c2cf3
Signed-off-by: Pranav Vashi <neobuddy89@gmail.com>

Author: sleepiggy

libs/hwui/pipeline/skia/SkiaDisplayList.cpp

@@ -102,12 +102,12 @@ bool SkiaDisplayList::prepareListAndChildren(
     bool hasBackwardProjectedNodesSubtree = false;
 
     for (auto& child : mChildNodes) {
-        hasBackwardProjectedNodesHere |= child.getNodeProperties().getProjectBackwards();
         RenderNode* childNode = child.getRenderNode();
         Matrix4 mat4(child.getRecordedMatrix());
         info.damageAccumulator->pushTransform(&mat4);
         info.hasBackwardProjectedNodes = false;
         childFn(childNode, observer, info, functorsNeedLayer);
+        hasBackwardProjectedNodesHere |= child.getNodeProperties().getProjectBackwards();
         hasBackwardProjectedNodesSubtree |= info.hasBackwardProjectedNodes;
         info.damageAccumulator->popTransform();
     }