* [Nokia ixs7215] Platform API fixes
This commit delivers the following fixes
- Fix bug preventing access to second PSU eeprom
- Fix bug preventing updates to front panel PSU status led
- Fix SFP reset test case failure
* Fix LGTM alert
- Improve sonic-mgmt platform test suite pass rate
- Improve coverage of platform unit tests
- Provide platform specific reboot logic as per platform porting guide
- Fix bug due to pcie.yaml file being located in the wrong directory
- Why I did it
Enable platform API tests to run successfully by providing required test infrastructure files along with supporting changes.
- How I did it
Added platform.json along with supporting changes.
- Addition of pcie.yaml supporting pcied
- Addition of Real fan drawer support vs Virtual
- Removal of python2 wheel with support in place for python3
- supporting changes platform api tests
