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/EglManager.h b/libs/hwui/renderthread/EglManager.h
index fc6b28d..b8f8c92 100644
--- a/libs/hwui/renderthread/EglManager.h
+++ b/libs/hwui/renderthread/EglManager.h
@@ -18,6 +18,7 @@
 
 #include <EGL/egl.h>
 #include <EGL/eglext.h>
+#include <SkColorSpace.h>
 #include <SkImageInfo.h>
 #include <SkRect.h>
 #include <cutils/compiler.h>