Add plugin interface_names entry for ccselect

When the ccselect pluggable interface was added, the interface_names
table wasn't updated, so configuring modules for it wouldn't work.
Add it now.

ticket: 7015
target_version: 1.10
tags: pullup

git-svn-id: svn://anonsvn.mit.edu/krb5/trunk@25470 dc483132-0cff-0310-8789-dd5450dbe970

src/lib/krb5/krb/plugin.c

@@ -30,7 +30,8 @@ const char *interface_names[PLUGIN_NUM_INTERFACES] = {
     "pwqual",
     "kadm5_hook",
     "clpreauth",
-    "kdcpreauth"
+    "kdcpreauth",
+    "ccselect"
 };
 
 /* Return the context's interface structure for id, or NULL if invalid. */