Add statement about required license (#9115)

* Add statement about required license

* Add fixes from review

* Put license statemetn in shared file

* Add license statemetn

* Update libbeat/docs/shared-license-statement.asciidoc

Co-Authored-By: dedemorton <[email protected]>

libbeat/docs/shared-central-management.asciidoc

@@ -28,6 +28,14 @@ To learn more, see <<how-central-managment-works>>.
 To use central management, <<enroll-beats,enroll your {beats}>>, then use
 the {cm-ui} UI in {kib} to create and apply the configurations.
 
+[NOTE]
+=====
+This feature requires an Elastic license that includes {beats} central
+management.  
+
+include::shared-license-statement.asciidoc[]
+=====
+
 --
 
 [[how-central-managment-works]]
@@ -117,6 +125,11 @@ or <<username-password-enrollment,username and password-based>> enrollment.
 [float]
 === Prerequisites
 
+* Verify that your Elastic license includes the {beats} central management
+feature.
++
+include::shared-license-statement.asciidoc[]
+
 * {kibana-ref}/using-kibana-with-security.html[Enable security] in {kib} to
 ensure that only users with sufficient privileges are able to access {beats}
 configurations. 

libbeat/docs/shared-license-statement.asciidoc

@@ -0,0 +1,4 @@
+Don't have a license? You can start a 30-day trial. At the end of the trial
+period, you can purchase a subscription to keep using central management. For
+more information, see https://www.elastic.co/subscriptions and
+{stack-ov}/license-management.html[License Management].