* Change port index in port_config.ini to 1-based
* Add default port index to port_config.ini, change platform plugins to accept 1-based port index
* fix port index in sfp_event.py
- Update SAI (added support of SN2740 profile).
- Update SDK to version 4.2.3130.
- Update FW to version 13.1224.0140.
- Update HW MGMT to version 1.0.0160.