update appVersions for all charts before release

* update and clean up appVersions for all voltha related charts to
  included latest software/application releases into next voltha release
* update voltha-stack chart to include new chart versions
* make sure all voltha-* charts have at minimal a 2.12.X version to
  point out their relation to the upcoming voltha-2.12 release and avoid
  version collision with previously developed and published chart
  versions from voltha-2.X branches
* the charts voltha-go-controller and voltha-northbound-bbf-adapter are
  currently still under development and the chart versions have
  therefore not been increased to align with the voltha 2.12 release
  naming scheme described above
* application version updates:
  * bbsim-sadis-server from 0.3.4 to 0.3.5
  * voltha-adapter-openonu from 2.7.3 to 2.11.3
  * voltha-adapter-openolt from 4.3.6 to 4.4.5
  * voltha-tracing (jaeger) from 1.18 to 1.51
  * voltha-ofagent-go from 2.1.3 to 2.1.6
  * voltha-rw-core from 3.1.8 to 3.4.8
* update some comments for appVersion in Chart.yaml files to be more
  precise about how this value is used

Change-Id: I04879ecf822b6cac5d9d55fbab6a86efc11ae55d
Signed-off-by: Jan Klare <jan.klare@bisdn.de>
diff --git a/voltha-infra/Chart.yaml b/voltha-infra/Chart.yaml
index 17b05ce..ef84fe2 100644
--- a/voltha-infra/Chart.yaml
+++ b/voltha-infra/Chart.yaml
@@ -29,7 +29,7 @@
 name: voltha-infra
 
 appVersion: "2.11"
-version: 2.12.0
+version: 2.12.1
 
 dependencies:
   - name: onos-classic
@@ -42,7 +42,7 @@
     condition: redis.enabled
   - name: bbsim-sadis-server
     repository: file://../bbsim-sadis-server
-    version: 0.3.2
+    version: 0.3.3
     condition: bbsim-sadis-server.enabled
   - name: etcd
     repository: https://charts.bitnami.com/bitnami
@@ -58,7 +58,7 @@
     condition: radius.enabled
   - name: voltha-tracing
     repository: file://../voltha-tracing
-    version: 1.0.4
+    version: 2.12.0
     condition: voltha-tracing.enabled
   - name: elasticsearch
     repository: https://helm.elastic.co