patch 9.0.1682: sodium encryption is not portable

Problem: crypt: sodium encryption is not portable
Solution: use little-endian byte order for sodium encrypted files

As mentioned in #12586, sodium encryption only works on little ending
architectures, because reading and writing the sodium encryption
parameters are stored in the encrypted files in an arch-dependent way.

This of course fails for big-endian architectures like s390.

So make sure to use little-endian byte order when reading and writing
sodium encrypted files.

fixes: #12586
closes: 12655

src/version.c

@@ -695,6 +695,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    1682,
 /**/
     1681,
 /**/