[VOL-5020] Update helm charts for repo:voltha-tracing

voltha-tracing/templates/_helpers.tpl
voltha-tracing/templates/jaeger-deploy.yaml
voltha-tracing/templates/tracing-agent-svc.yaml
voltha-tracing/templates/tracing-gui-svc.yaml
voltha-tracing/values.yaml
voltha/templates/_helpers.tpl
voltha/templates/api-svc.yaml
voltha/templates/core-deploy.yaml
voltha/templates/core-profile-svc.yaml
voltha/templates/core-svc.yaml
voltha/templates/ingress.yaml
voltha/templates/ofagent-deploy.yaml
voltha/templates/ofagent-profile-svc.yaml
-----------------------------------------
  o Update copyright notice ending date.

voltha-tracing/Chart.yaml
voltha-infra/Chart.yaml
-----------------------
  o Update voltha-tracing chart version to 2.12.1

voltha-stack/Chart.yaml
-----------------------
  o Update dependent voltha chart version to v2.12.15

voltha/Chart.yaml
-----------------
  o Increment as a dependency induced by indirect chart deps
    voltha-infra/Chart.yaml and voltha-stack/Chart.yaml.

Change-Id: I12e25e0348b320176ab8a409cc64c00f428f1aec
diff --git a/voltha-infra/Chart.yaml b/voltha-infra/Chart.yaml
index ef84fe2..08b2410 100644
--- a/voltha-infra/Chart.yaml
+++ b/voltha-infra/Chart.yaml
@@ -28,8 +28,13 @@
     url: "https://www.opennetworking.org"
 name: voltha-infra
 
-appVersion: "2.11"
-version: 2.12.1
+# app version is NOT used in this chart for application versions or image tags
+# but represents the voltha release version itself
+appVersion: "2.12"
+
+## Chart version for package:
+##   Increment when Chart.yaml changes
+version: "2.12.2"
 
 dependencies:
   - name: onos-classic
@@ -56,9 +61,9 @@
     repository: https://charts.opencord.org
     version: 1.0.2
     condition: radius.enabled
-  - name: voltha-tracing
-    repository: file://../voltha-tracing
-    version: 2.12.0
+  - name       : voltha-tracing
+    repository : file://../voltha-tracing
+    version    : "2.12.1"
     condition: voltha-tracing.enabled
   - name: elasticsearch
     repository: https://helm.elastic.co