Backport of #55678 to stable-2.8.
* XenServer: Minor changes and fixes in xenserver_guest
- xenserver_guest module: ignore wait_for_ip_address when
state=absent (fixes#55348). Module docs are updated to reflect this.
- xenserver_guest module: show proper error message when maximum number
of network interfaces is reached and multiple network interfaces are
added at once (fix for changes introduced in #54697).
- xenserver_guest module: fixed a bug in reconfigure() where VM would
be powered off even though check mode is used when reconfiguration
needs VM to be powered off.
* Added changelog fragment
(cherry picked from commit 2a39dc84b7)
