Enterprise security support

[tejanarahari]

Description

This PR provides the capability to Cypress PSoC 6 targets to connect to 802.1x WiFi networks.
Added NSAPI_SECURITY_WPA2_ENT type to nsapi_security enum.

• Phrase helps to connect to an 802.1X capable network.
• Phrase conforms to WPA2-AES and WPA-TKIP with enterprise security.

Pull request type

[ ] Fix
[ ] Refactor
[ ] Target update
[X] Functionality change
[ ] Docs update
[ ] Test update
[ ] Breaking change

Reviewers

Please suggest

Release Notes

Add NSAPI_SECURITY_WPA2_ENT type to nsapi_security enum.

• Phrase helps to connect to an 802.1X capable network.
• Phrase conforms to WPA2-AES and WPA-TKIP with enterprise security.

[ciarmcom]

@cy-mtna, thank you for your changes.
@ARMmbed/mbed-os-ipcore @ARMmbed/mbed-os-maintainers please review.

[tejanarahari]

@SeppoTakalo Please can you merge the patch as I have tested the feature on CYPRESS platforms

[maclobdell]

@ARMmbed/mbed-os-maintainers - I checked out this PR and manually compiled the tests. Everything built successfully (except a few tests with long file names failed with gcc). Can the CI be triggered again to keep this PR moving? Thanks!

[40Grit]

Thoughts on tests for this? Or should they be target specific?

[tejanarahari]

Thoughts on tests for this? Or should they be target specific?

Changes are not target specific, but the funtionality is applicable and tested only on Cypress platforms.

[0xc0170]

CI started

[mbed-ci]

Test run: SUCCESS

Summary: 11 of 11 test jobs passed
Build number : 1
Build artifacts