chore(zlib): update zlib to version 1.3

Update the zlib source files to the latest tagged version 1.3 [1].

[1] https://github.com/madler/zlib/tree/v1.3

Signed-off-by: Manish Pandey <manish.pandey2@arm.com>
Change-Id: I1eba5671efab75699e68fc2f2aa9400d0f5aba7d
diff --git a/lib/zlib/inffast.h b/lib/zlib/inffast.h
index e5c1aa4..49c6d15 100644
--- a/lib/zlib/inffast.h
+++ b/lib/zlib/inffast.h
@@ -8,4 +8,4 @@
    subject to change. Applications should only use zlib.h.
  */
 
-void ZLIB_INTERNAL inflate_fast OF((z_streamp strm, unsigned start));
+void ZLIB_INTERNAL inflate_fast(z_streamp strm, unsigned start);