Update the correct dx bundle

I updated based on a very old version that I had pulled down (we only update based on osstring in build.gradle)

Change-Id: I31ee3755fd0aad5730b75917a578f261e38321e9
diff --git a/tools/windows/dx.tar.gz.sha1 b/tools/windows/dx.tar.gz.sha1
index 8a8b163..d76e1b8 100644
--- a/tools/windows/dx.tar.gz.sha1
+++ b/tools/windows/dx.tar.gz.sha1
@@ -1 +1 @@
-e3c46629d1abf8a596c5c279cbd25f79366a2cb0
\ No newline at end of file
+1cd960db2115795a2599c56c58ce209c0f8d7476
\ No newline at end of file