Fix includes of SkColorSpace

Required to land https://skia-review.googlesource.com/c/skia/+/526416

Change-Id: I7959b36c533f99334096a2bc467853a5aad92978
Bug: skia:13052
diff --git a/libs/hwui/renderthread/VulkanSurface.h b/libs/hwui/renderthread/VulkanSurface.h
index beb71b72..2648666 100644
--- a/libs/hwui/renderthread/VulkanSurface.h
+++ b/libs/hwui/renderthread/VulkanSurface.h
@@ -20,6 +20,7 @@
 #include <system/window.h>
 #include <vulkan/vulkan.h>
 
+#include <SkColorSpace.h>
 #include <SkRefCnt.h>
 #include <SkSize.h>