Bug 1777920

This bug is created as a clone of upstream ticket:
https://pagure.io/freeipa/issue/8131

After running Red Hat's covscan tool, following issues were found:

### Error: RESOURCE_LEAK (CWE-772):
```
freeipa-4.8.3/util/ipa_pwd_ntlm.c:63: alloc_fn: Storage is returned from allocation function "calloc".
freeipa-4.8.3/util/ipa_pwd_ntlm.c:63: var_assign: Assigning: "ucs2Passwd" = storage returned from "calloc(ol, 1UL)".
freeipa-4.8.3/util/ipa_pwd_ntlm.c:71: var_assign: Assigning: "outc" = "ucs2Passwd".
freeipa-4.8.3/util/ipa_pwd_ntlm.c:92: noescape: Resource "ucs2Passwd" is not freed or pointed-to in "MD4_Update".
freeipa-4.8.3/util/ipa_pwd_ntlm.c:108: leaked_storage: Variable "ucs2Passwd" going out of scope leaks the storage it points to.
freeipa-4.8.3/util/ipa_pwd_ntlm.c:108: leaked_storage: Variable "outc" going out of scope leaks the storage it points to.
#  106|   
#  107|   done:
#  108|->     return ret;
#  109|   }
```

### Error: RESOURCE_LEAK (CWE-772):
```
freeipa-4.8.3/client/ipa-getkeytab.c:513: alloc_arg: "ipa_string_to_enctypes" allocates memory that is stored into "es".
freeipa-4.8.3/client/ipa-getkeytab.c:515: leaked_storage: Variable "es" going out of scope leaks the storage it points to.
#  513|           ret = ipa_string_to_enctypes(enctypes, &es, &num_es, err_msg);
#  514|           if (ret || num_es == 0) {
#  515|->             return LDAP_OPERATIONS_ERROR;
#  516|           }
#  517|       }
```