[Celestica] Leh800bcls:Platform:Add associate code for the pca9548 idle state

[wuchao-tech]

Pre-submission checklist

• I've ran the linters locally and fixed lint errors related to the files I modified in this PR. You can install the linters by running pip install -r requirements-dev.txt && pre-commit install
• pre-commit run

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Summary

Description
This PR is to add platform manager configuration file adapt pca9548 new idle mode from Meta's suggestion

Motivation
To support pca9548 (-2) mode which support multi pca9548 connected to one bus.

Configuration
platform_manager.json
1.Add new configuration parameter for pca9548 devices

PlatformExplorer.cpp
1.Add new method in I2C device creation function

platform_manager_config.thrift
1.Add new parameter in thrift

Test Plan

Services running normally. platform_manager& sensor_service all run well
platform_manager.zip

HW tests passed.
fw_util_hw_test.zip

[meta-codesync]

@mikechoifb has imported this pull request. If you are a Meta employee, you can view this in D109721514.