[charts/portal] : merging 5.1.1 changes to stable

[SatishKoney-BRCM]

Description of the change

no new functional changes....just merging 5.1.1 changes to stable

Benefits

All the 5.1.1 features are now available in the stable branch

Drawbacks

None

Applicable issues

• fixes #

Additional information

Checklist

• [X] Chart version bumped in Chart.yaml according to semver.
• [X] Variables are documented in the README.md
• [X] Title of the PR starts with chart name (e.g. [charts/gateway])
• [X] If the chart contains a values-production.yaml apart from values.yaml, ensure that you implement the changes in both files