Add addtional resolve calls to vulkan backend

src/gpu/vk/GrVkGpuCommandBuffer.cpp

Index: src/gpu/vk/GrVkGpuCommandBuffer.cpp
diff --git a/src/gpu/vk/GrVkGpuCommandBuffer.cpp b/src/gpu/vk/GrVkGpuCommandBuffer.cpp
index b2336495a9ce837c70bd0ee06723c87d600a98fd..77a038a9577999a245c829427d31298e9495978a 100644
--- a/src/gpu/vk/GrVkGpuCommandBuffer.cpp
+++ b/src/gpu/vk/GrVkGpuCommandBuffer.cpp
@@ -346,6 +346,13 @@ static void append_sampled_images(const GrProcessor& processor,
             const GrTextureAccess& texAccess = processor.textureAccess(i);
             GrVkTexture* vkTexture = static_cast<GrVkTexture*>(processor.texture(i));
             SkASSERT(vkTexture);
+
+            // We may need to resolve the texture first if it is also a render target
+            GrVkRenderTarget* texRT = static_cast<GrVkRenderTarget*>(vkTexture->asRenderTarget());
+            if (texRT) {
+                gpu->onResolveRenderTarget(texRT);
+            }
+
             const GrTextureParams& params = texAccess.getParams();
             // Check if we need to regenerate any mip maps
             if (GrTextureParams::kMipMap_FilterMode == params.filterMode()) {