veritysetup: remove double escaping of data device + hash device spec

generator_write_veritysetup_service_section() already escapes the
parameters internally, doing so in the caller means double escaping,
which is a bug. Fix it.

(cherry picked from commit 45e3406)

src/veritysetup/veritysetup-generator.c

@@ -426,7 +426,7 @@ static int create_disk(
                         "After=systemd-tmpfiles-setup-dev.service\n",
                         hu_escaped);
 
-        r = generator_write_veritysetup_service_section(f, name, du_escaped, hu_escaped, roothash, options);
+        r = generator_write_veritysetup_service_section(f, name, du, hu, roothash, options);
         if (r < 0)
                 return r;