fix circular dependency libnativewindow <-> libui

Bug: 37647680
Bug: 37648355
Test: compile, manual
Change-Id: Iadbccdcfe68792e3b5543963a5e81f985f87de09
diff --git a/include/hardware/gralloc1.h b/include/hardware/gralloc1.h
index 67f0a0b..0a6843f 100644
--- a/include/hardware/gralloc1.h
+++ b/include/hardware/gralloc1.h
@@ -18,6 +18,7 @@
 #define ANDROID_HARDWARE_GRALLOC1_H
 
 #include <hardware/hardware.h>
+#include <cutils/native_handle.h>
 
 __BEGIN_DECLS