libdvrgraphics: Add libarect as whole static lib to fix compile

Changes in frameworks/native cause compile errors looking for
android/rect.h.

Bug: None
Test: Build completes.
Change-Id: Ie9ba9aca0cb620c0874d47113b9ea9875277a0f7
diff --git a/libs/vr/libdvrgraphics/Android.mk b/libs/vr/libdvrgraphics/Android.mk
index b95b18e..b9e601c 100644
--- a/libs/vr/libdvrgraphics/Android.mk
+++ b/libs/vr/libdvrgraphics/Android.mk
@@ -29,6 +29,9 @@
 LOCAL_EXPORT_C_INCLUDE_DIRS := $(includeFiles)
 LOCAL_SHARED_LIBRARIES := $(sharedLibraries)
 LOCAL_STATIC_LIBRARIES := $(staticLibraries)
+# Rather than add this header-file-only library to all users of libdvrgraphics,
+# include it here.
+LOCAL_WHOLE_STATIC_LIBRARIES := libarect
 LOCAL_MODULE := libdvrgraphics
 include $(BUILD_STATIC_LIBRARY)