Enable stencil wrap ops on vulkan

src/gpu/vk/GrVkCaps.cpp

Index: src/gpu/vk/GrVkCaps.cpp
diff --git a/src/gpu/vk/GrVkCaps.cpp b/src/gpu/vk/GrVkCaps.cpp
index aa5f71bc7244e4461432979306c306ad33b07adb..60934de2a729c6ae02cef3082d5bbac68acc5971 100644
--- a/src/gpu/vk/GrVkCaps.cpp
+++ b/src/gpu/vk/GrVkCaps.cpp
@@ -24,7 +24,7 @@ GrVkCaps::GrVkCaps(const GrContextOptions& contextOptions, const GrVkInterface*
     fSRGBSupport = true;   // always available in Vulkan
     fNPOTTextureTileSupport = true;  // always available in Vulkan
     fTwoSidedStencilSupport = true;  // always available in Vulkan
-    fStencilWrapOpsSupport = false; //TODO: figure this out
+    fStencilWrapOpsSupport = true; // always available in Vulkan
     fDiscardRenderTargetSupport = false; //TODO: figure this out
     fReuseScratchTextures = true; //TODO: figure this out
     fGpuTracingSupport = false; //TODO: figure this out
@@ -41,7 +41,6 @@ GrVkCaps::GrVkCaps(const GrContextOptions& contextOptions, const GrVkInterface*
     fMaxColorSampleCount = 4; // minimum required by spec
     fMaxStencilSampleCount = 4; // minimum required by spec
 
-
     fShaderCaps.reset(new GrGLSLCaps(contextOptions));
 
     this->init(contextOptions, vkInterface, physDev, featureFlags, extensionFlags);