Whitelist windows module

Bug: 23566667
Change-Id: I92b6f432f48507e0fbb479fc60d9cfb72c3d2e96
diff --git a/Android.mk b/Android.mk
index f8191fa..7f9cea3 100644
--- a/Android.mk
+++ b/Android.mk
@@ -10,7 +10,7 @@
     src/zopfli/zlib_container.c src/zopfli/zopfli_lib.c
 
 LOCAL_MODULE := libzopfli
-LOCAL_MODULE_TAGS := optional
+LOCAL_MODULE_HOST_OS := darwin linux windows
 LOCAL_CFLAGS += -O2
 LOCAL_SRC_FILES := $(zopfli_files)
 LOCAL_MULTILIB := both
@@ -18,7 +18,6 @@
 
 include $(CLEAR_VARS)
 LOCAL_MODULE := libzopfli
-LOCAL_MODULE_TAGE := optional
 LOCAL_CFLAGS += -O2
 LOCAL_SRC_FILES := $(zopfli_files)
 LOCAL_MULTILIB := both