YANG: all values in an enumeration needs to be sorted in ascendning order

This due to a bug in libyang: CESNET/libyang#2462
With out this fix, confd crashes when setting for example the DHCPv6 option
ntp-server

Author: mattiaswal

src/confd/yang/confd/infix-dhcp-common.yang

@@ -7,6 +7,10 @@ module infix-dhcp-common {
   contact      "[email protected]";
   description  "Shared types between DHCP server and client.";
 
+  revision 2025-12-21 {
+    description "Reorder enum values to ascending order, see https://github.com/CESNET/libyang/issues/2462"
+    reference "internal";
+  }
   revision 2025-11-09 {
     description "Add DHCPv6 options typedef and DHCPv4 vendor-class option.";
     reference "internal";
@@ -171,21 +175,21 @@ module infix-dhcp-common {
           value 25;
           description "Identity Association for Prefix Delegation, RFC 8415.";
         }
-        enum ntp-server {
-          value 56;
-          description "NTP time servers, RFC 5908.";
-        }
-        enum client-fqdn {
-          value 39;
-          description "Client Fully Qualified Domain Name, RFC 4704.";
+        enum sntp-server {
+          value 31;
+          description "Simple Network Time Protocol servers, RFC 4075.";
         }
         enum information-refresh-time {
           value 32;
           description "Information refresh time for stateless DHCPv6, RFC 8415.";
         }
-        enum sntp-server {
-          value 31;
-          description "Simple Network Time Protocol servers, RFC 4075.";
+        enum client-fqdn {
+          value 39;
+          description "Client Fully Qualified Domain Name, RFC 4704.";
+        }
+        enum ntp-server {
+          value 56;
+          description "NTP time servers, RFC 5908.";
         }
       }
     }