patch 9.0.1528: libsodium encryption is only used with "huge" features

Problem:    Libsodium encryption is only used with "huge" features, even when
            manually enabled through configure. (Tony Mechelynck)
Solution:   Remove the condition on FEAT_HUGE.
diff --git a/src/version.c b/src/version.c
index e6d2713..5af78a5 100644
--- a/src/version.c
+++ b/src/version.c
@@ -696,6 +696,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    1528,
+/**/
     1527,
 /**/
     1526,