Bug 3330205 Reentrant MD5

Change-Id: I4c8e4a8f3ef4cdaac50f32d9e55accb16133ab35
diff --git a/libc/bionic/md5.c b/libc/bionic/md5.c
index 087786f..1117c3b 100644
--- a/libc/bionic/md5.c
+++ b/libc/bionic/md5.c
@@ -237,7 +237,7 @@
 void
 MD5_Final (void *res, struct md5 *m)
 {
-  static unsigned char zeros[72];
+  unsigned char zeros[72];
   unsigned offset = (m->sz[0] / 8) % 64;
   unsigned int dstart = (120 - offset - 1) % 64 + 1;