Fixed https://github.com/wso2/product-iots/issues/1695

[charithag]

Purpose

Fix issue in install or update app in work profile via app manager.

Goals

Allow user to install / update apps from app manager if policy permits to install apps from unknown sources.

Approach

Configure unknown sources Secure Setting via device policy manager if current policy permits to install apps from unknown sources.

User stories

N/A, bug fix

Release note

Fixed wso2/product-iots#1695

Documentation

N/A, Bug fix

Training

N/A, Bug fix

Certification

N/A, Bug fix

Marketing

N/A, Bug fix

Automation tests

Cannot automate

Security checks

• Followed secure coding standards in http://wso2.com/technical-reports/wso2-secure-engineering-guidelines? yes
• Ran FindSecurityBugs plugin and verified report? yes
• Confirmed that this PR doesn't commit any keys, passwords, tokens, usernames, or other secrets? yes

Samples

N/A, Bug fix

Related PRs

No

Migrations (if applicable)

Up-gradable from Agent 3.1.30

Test environment

Android API 25 7.1.1

Learning

N/A, Bug fix