Update SkiaVulkanPipeline include to GrDirectContext

Just a name change, no functional effect.

Change-Id: I28c799e942e3c745ce54a5bb793a1a71df8adbef
diff --git a/libs/hwui/pipeline/skia/SkiaVulkanPipeline.cpp b/libs/hwui/pipeline/skia/SkiaVulkanPipeline.cpp
index 212a428..ad6363b 100644
--- a/libs/hwui/pipeline/skia/SkiaVulkanPipeline.cpp
+++ b/libs/hwui/pipeline/skia/SkiaVulkanPipeline.cpp
@@ -29,7 +29,7 @@
 #include <SkSurface.h>
 #include <SkTypes.h>
 
-#include <GrContext.h>
+#include <GrDirectContext.h>
 #include <GrTypes.h>
 #include <vk/GrVkTypes.h>