Platform library changes
- Fix the use of /proc/modules during testing, fixes#7463
- Add `libsfp-eeprom.so` build to read/write xcvr eeproms in C
- Add some more reboot-cause information
- Write down temperature hw thresholds to the sensors
- Report software thresholds through platform api
- Writ `port_name sysfs` file of optoe`
- Tests enhancements
- Fix dependency issues for chassis provisioning
Platform configuration changes
- Add `pcie.yaml` configuration for a few platforms
- Mount `libsfp-eeprom.so` inside `pmon`
- Fix `Arista-7050SX3-48C8` and `Arista-7050SX3-48YC8' platform and hwsku
- Miscellaneous fixes
Co-authored-by: Boyang Yu <byu@arista.com>
Co-authored-by: Zhi Yuan Carl Zhao <zyzhao@arista.com>
