Tidy up validate-modules:doc-required-mismatch (#1415) (#1417)

* Tidy up validate-modules ignores doc-required-mismatch

* Tidy up validate-modules ignores doc-required-mismatch - update on 2.11

* Fixed chengelog frag

* rolledback removal of parameter from cloud/smartos/vmadm.py

* removed changelog frag for the rollback

* Update plugins/modules/cloud/smartos/vmadm.py

Co-authored-by: Felix Fontein <felix@fontein.de>

* Revert "removed changelog frag for the rollback"

This reverts commit 56a02ead3b.

* suggestion from PR

* yet another PR suggestion

Co-authored-by: Felix Fontein <felix@fontein.de>
(cherry picked from commit b69ea1dfd9)

Co-authored-by: Alexei Znamensky <103110+russoz@users.noreply.github.com>

plugins/modules/system/aix_devices.py

@@ -25,7 +25,6 @@ options:
     - The name of the device.
     - C(all) is valid to rescan C(available) all devices (AIX cfgmgr command).
     type: str
-    required: true
   force:
     description:
     - Forces action.

plugins/modules/system/osx_defaults.py

@@ -36,7 +36,6 @@ options:
     description:
       - The key of the user preference.
     type: str
-    required: true
   type:
     description:
       - The type of value to write.