Update changelog

CHANGELOG.next.asciidoc

@@ -42,17 +42,6 @@ https://github.com/elastic/beats/compare/v7.0.0-alpha2...master[Check the HEAD d
 
 *Affecting all Beats*
 
-TLS or Beats that accept connections over TLS and validate client certificates. {pull}14146[14146]
-- Fix panic in the Logstash output when trying to send events to closed connection. {pull}15568[15568]
-
-*Auditbeat*
-
-
-*Filebeat*
-
-
-*Heartbeat*
-
 - TLS or Beats that accept connections over TLS and validate client certificates. {pull}14146[14146]
 - Fix panics that could result from invalid TLS certificates. This can affect Beats that connect over TLS, or Beats that accept connections over TLS and validate client certificates. {pull}14146[14146]
 - Fix panic in the Logstash output when trying to send events to closed connection. {pull}15568[15568]
@@ -89,9 +78,6 @@ TLS or Beats that accept connections over TLS and validate client certificates.
 
 *Metricbeat*
 
-
-*Packetbeat*
-
 - Add dedot for tags in ec2 metricset and cloudwatch metricset. {issue}15843[15843] {pull}15844[15844]
 - Use RFC3339 format for timestamps collected using the SQL module. {pull}15847[15847]
 - Avoid parsing errors returned from prometheus endpoints. {pull}15712[15712]
@@ -120,14 +106,14 @@ TLS or Beats that accept connections over TLS and validate client certificates.
 
 
 *Filebeat*
-
 - Set event.outcome field based on googlecloud audit log output. {pull}15731[15731]
 - Add dashboard for AWS ELB fileset. {pull}15804[15804]
 - Add dashboard for AWS vpcflow fileset. {pull}16007[16007]
 - Add ECS tls fields to zeek:smtp,rdp,ssl and aws:s3access,elb {issue}15757[15757] {pull}15935[15936]
 - Add custom string mapping to CEF module to support Forcepoint NGFW {issue}14663[14663] {pull}15910[15910]
 - move create-[module,fileset,fields] to mage and enable in x-pack/filebeat {pull}15836[15836]
 - Add ECS tls and categorization fields to apache module. {issue}16032[16032] {pull}16121[16121]
+- Add MQTT input. {issue}15602[15602] {pull}16204[16204]
 
 *Heartbeat*
 
@@ -146,8 +132,6 @@ TLS or Beats that accept connections over TLS and validate client certificates.
 - Add DynamoDB AWS Metricbeat light module {pull}15097[15097]
 - Release elb module as GA. {pull}15485[15485]
 - Add a `system/network_summary` metricset {pull}15196[15196]
-- Add mesh metricset for Istio Metricbeat module{pull}15535[15535]
-- Make the `system/cpu` metricset collect normalized CPU metrics by default. {issue}15618[15618] {pull}15729[15729]
 - Add mesh metricset for Istio Metricbeat module {pull}15535[15535]
 - Add mixer metricset for Istio Metricbeat module {pull}15696[15696]
 - Add pilot metricset for Istio Metricbeat module {pull}15761[15761]