Update my_user_config.h

[sfromis]

Adding SetOption references for a few #define, to make the relation clear, and in the common searchable format like [SetOption147]. Also added that since some time now, this option covers both SSerialReceived and IrReceived. No testing done, as these changes are only to the comments.

Description:

Related issue (if applicable): fixes #

Checklist:

• The pull request is done against the latest development branch
• Only relevant files were touched
• Only one feature/fix was added per PR and the code change compiles without warnings
• The code change is tested and works with Tasmota core ESP8266 V.2.7.7
• The code change is tested and works with Tasmota core ESP32 V.3.0.4
• I accept the CLA.

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