[DOCS] Add 8.11.2 release notes (#2180) (#2182)

(cherry picked from commit 68e9cb6)

Author: jbaiera

docs/src/reference/asciidoc/appendix/release-notes/8.11.2.adoc

@@ -0,0 +1,9 @@
+[[eshadoop-8.11.2]]
+== Elasticsearch for Apache Hadoop version 8.11.2
+
+[[bugs-8.11.2]]
+=== Bug Fixes
+Spark::
+* Nested objects fail parsing in Spark SQL when empty objects present
+https://github.com/elastic/elasticsearch-hadoop/issues/2157[#2157]
+https://github.com/elastic/elasticsearch-hadoop/pull/2158[#2158]

docs/src/reference/asciidoc/appendix/release.adoc

@@ -9,6 +9,7 @@ This section summarizes the changes in each release.
 [[release-notes-8]]
 ===== 8.x
 
+* <<eshadoop-8.11.2>>
 * <<eshadoop-8.11.1>>
 * <<eshadoop-8.11.0>>
 * <<eshadoop-8.10.4>>
@@ -96,6 +97,7 @@ Elasticsearch 5.3.1.
 
 ////////////////////////
 
+include::release-notes/8.11.2.adoc[]
 include::release-notes/8.11.1.adoc[]
 include::release-notes/8.11.0.adoc[]
 include::release-notes/8.10.4.adoc[]