Add some copy support for vulkan msaa

src/gpu/GrDrawTarget.cpp

Index: src/gpu/GrDrawTarget.cpp
diff --git a/src/gpu/GrDrawTarget.cpp b/src/gpu/GrDrawTarget.cpp
index dc2fd3086121761bc96f7b57ea5f2d059ac7e805..d8b44b8cba995a28c9de8268b3db988ef23d4875 100644
--- a/src/gpu/GrDrawTarget.cpp
+++ b/src/gpu/GrDrawTarget.cpp
@@ -179,7 +179,7 @@ bool GrDrawTarget::setupDstReadIfNecessary(const GrPipelineBuilder& pipelineBuil
     // MSAA consideration: When there is support for reading MSAA samples in the shader we could
     // have per-sample dst values by making the copy multisampled.
     GrSurfaceDesc desc;
-    if (!fGpu->initCopySurfaceDstDesc(rt, &desc)) {
+    if (!fGpu->initDescForDstCopy(rt, &desc)) {
         desc.fOrigin = kDefault_GrSurfaceOrigin;
         desc.fFlags = kRenderTarget_GrSurfaceFlag;
         desc.fConfig = rt->config();