Add "apn", remove "running" property for ppp-client interfaces

Commit 2164261 added support for `interface ppp-client`. It missed the
`apn` property and added the runtime-only `running` property.

Signed-off-by: Michael Hanselmann <public@hansmi.ch>

plugins/module_utils/_api_data.py

@@ -304,6 +304,7 @@ def join_path(path):
  fields={
  'add-default-route': KeyInfo(default=True),
  'allow': KeyInfo(default='pap,chap,mschap1,mschap2'),
+ 'apn': KeyInfo(default='internet'),
  'comment': KeyInfo(can_disable=True, remove_value=''),
  'data-channel': KeyInfo(default=0),
  'default-route-distance': KeyInfo(default=1),
@@ -323,7 +324,6 @@ def join_path(path):
  'pin': KeyInfo(default=''),
  'port': KeyInfo(),
  'profile': KeyInfo(default='default'),
- 'running': KeyInfo(default=False),
  'use-peer-dns': KeyInfo(default=True),
  'user': KeyInfo(default=''),
  },