Use pathmap.mk for system/media includes

Currently these point to the old location.
Another CL will move them to the new location.

Change-Id: I61dd732981a9a7a3f4a2c1cc01dc072f4fb6a2b8
diff --git a/core/config.mk b/core/config.mk
index b42e7dc..afbddae 100644
--- a/core/config.mk
+++ b/core/config.mk
@@ -33,7 +33,7 @@
 	$(TOPDIR)frameworks/native/opengl/include \
 	$(TOPDIR)frameworks/base/include \
 	$(TOPDIR)frameworks/base/opengl/include \
-    $(TOPDIR)frameworks/base/native/include \
+	$(TOPDIR)frameworks/base/native/include \
 	$(TOPDIR)external/skia/include
 SRC_HOST_HEADERS:=$(TOPDIR)tools/include
 SRC_LIBRARIES:= $(TOPDIR)libs