Add support for PowerSave 2 command to enable RF only sleep on Beken N/T

[Zanadar]

No description provided.

[divadiow]

maybe submit a post about this too for greater visibility?

https://www.elektroda.com/rtvforum/forum390.html

[NonPIayerCharacter]

Remember making this suggestion on elektroda, but i forgot about it.
Btw, comment should be adjusted here:

OpenBK7231T_App/src/cmnds/cmd_main.c

Line 842 in 82ec9c8

//cmddetail:"descr":"Enables dynamic power saving mode on Beken N/T, BL602, W600, W800 and LN882H. In the case of LN882H PowerSave will not work as a startup command, so use in autoexec. On LN882H PowerSave 1 = light sleep and Powersave >1 (eg PowerSave 2) = deeper sleep. On LN882H PowerSave 1 should be used if BL0937 metering is present. On all supported platforms PowerSave 0 can be used to disable power saving.",

And not in .md file, as it is regenerated every several months.

[openshwprojects]

Very nice, but does it mean that we now have PowerSave 1 and PowerSave 2 with different meanings on different platforms?

Maybe it would be better to change the naming, for example, PowerSaveNoRF or PowerSave NoRF (PowerSave 1 = full powersave, PowerSave 0 = disable, PowerSave NoRF = only mcu sleep)

[Zanadar]

@NonPIayerCharacter thank you for the guidance regarding the comment... I have updated in cmd_main.c as suggested!

@openshwprojects I agree it is not ideal, obviously I did the best I could to add the new function as a minimalistic change whilst remaining non-breaking for the sake of upgrades. I am not sure it is an issue that the PowerSave setting behaves differently on different platforms as I can't imagine configurations would be shared between platforms often. What do you think?
I also see a potential issue with making it non-numeric as I imagine on some platforms it may not be quite as simple as RF vs MCU... for example there could in theory be different mcu power settings available.

[Zanadar]

Is this now approvable?

[divadiow]

Seems like a nice thing to have