Update vulkan format features in caps.

src/gpu/vk/GrVkImage.cpp

Index: src/gpu/vk/GrVkImage.cpp
diff --git a/src/gpu/vk/GrVkImage.cpp b/src/gpu/vk/GrVkImage.cpp
index f91c6a9ee69bc692602b6b998cc69e1c49861b93..74136308eaf169bc6e89b4045f867835ae801aca 100644
--- a/src/gpu/vk/GrVkImage.cpp
+++ b/src/gpu/vk/GrVkImage.cpp
@@ -58,6 +58,10 @@ const GrVkImage::Resource* GrVkImage::CreateResource(const GrVkGpu* gpu,
     if (!GrSampleCountToVkSampleCount(imageDesc.fSamples, &vkSamples)) {
         return nullptr;
     }
+
+    SkASSERT(VK_IMAGE_TILING_OPTIMAL == imageDesc.fImageTiling ||
+             VK_SAMPLE_COUNT_1_BIT == vkSamples);
+
     const VkImageCreateInfo imageCreateInfo = {
         VK_STRUCTURE_TYPE_IMAGE_CREATE_INFO,         // sType
         NULL,                                        // pNext