Add native include path.

Change-Id: Ic5d0b807467e8e673399a8a5f9b6702bc72960ab
diff --git a/core/config.mk b/core/config.mk
index a4d3154..82090fa 100644
--- a/core/config.mk
+++ b/core/config.mk
@@ -31,6 +31,7 @@
 	$(TOPDIR)dalvik/libnativehelper/include \
 	$(TOPDIR)frameworks/base/include \
 	$(TOPDIR)frameworks/base/opengl/include \
+    $(TOPDIR)frameworks/base/native/include \
 	$(TOPDIR)external/skia/include
 SRC_HOST_HEADERS:=$(TOPDIR)tools/include
 SRC_LIBRARIES:= $(TOPDIR)libs