isisd: Allow full no form for domain-password and area-password

Before:

```
LR1.wue3(config)# router isis VyOS
LR1.wue3(config-router)# no  area-password clear
% Unknown command: no  area-password clear
LR1.wue3(config-router)# no  area-password clear foo
% Unknown command: no  area-password clear foo
LR1.wue3(config-router)#
```

Closes #17722

Signed-off-by: Donatas Abraitis <donatas@opensourcerouting.org>

isisd/isis_cli.c

@@ -626,10 +626,17 @@ DEFPY_YANG(domain_passwd, domain_passwd_cmd,
 }
 
 DEFPY_YANG(no_area_passwd, no_area_passwd_cmd,
-      "no <area-password|domain-password>$cmd",
+      "no <area-password|domain-password>$cmd [<clear|md5>$pwd_type WORD$pwd [authenticate snp <send-only|validate>$snp]]",
       NO_STR
       "Configure the authentication password for an area\n"
-      "Set the authentication password for a routing domain\n")
+      "Set the authentication password for a routing domain\n"
+      "Clear-text authentication type\n"
+      "MD5 authentication type\n"
+      "Level-wide password\n"
+      "Authentication\n"
+      "SNP PDUs\n"
+      "Send but do not check PDUs on receiving\n"
+      "Send and check PDUs on receiving\n")
 {
 	nb_cli_enqueue_change(vty, ".", NB_OP_DESTROY, NULL);