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Compiler/PROCESSOR-SDK-AM335X: Change ttyS0 to ttyO0

Part Number: PROCESSOR-SDK-AM335X

Tool/software: TI C/C++ Compiler

im upgrading my sdk and i find that all uart is named ttyS* instead of ttyO* in the new kernel.

I want to use my application for the old kernel  in the new kernel.

The changed name of uart may lead a lot of problem for the application.

How could i change the default name of tty.