[Mellanox] Fix 4600c sensors.conf inverted psu number designation

[yuazhe]

Why I did it

This PR is used to standardize several sensors.conf psu section I. Fix 4600/4600c inverted psu number designation II. Fix 5600 second psu miss set_power_cap label III. Standardized comments

Work item tracking

• Microsoft ADO (number only):

How I did it

How to verify it

check sensors command output

Which release branch to backport (provide reason below if selected)

• [ ] 201811
• [ ] 201911
• [ ] 202006
• [ ] 202012
• [ ] 202106
• [ ] 202111
• [ ] 202205
• [ ] 202211
• [ ] 202305

Tested branch (Please provide the tested image version)

• [x] 202311
• [ ]

Description for the changelog

Link to config_db schema for YANG module changes

A picture of a cute animal (not mandatory but encouraged)

[yuazhe]

/azpw run Azure.sonic-buildimage

[mssonicbld]

/AzurePipelines run Azure.sonic-buildimage

[azure-pipelines[bot]]

Azure Pipelines successfully started running 1 pipeline(s).

[yuazhe]

/azpw ms_conflict

[liat-grozovik]

@yuazhe please check if this also needed for 202305

[mssonicbld]

Cherry-pick PR to 202311: https://github.com/sonic-net/sonic-buildimage/pull/19054

[yuazhe]

@yxieca please help to approve this pr for 202305