[U-Boot] Compilation warning: "MSR_RI" redefined

[Detlev Zundel]

Hi Stefan,

> your patch 7b5611cdd12ca0cc33f994f0d4a4454788fc3124 [inka4x0: Add hardware 
> diagnosis functions for inka4x0] introduced all kind of new defines in the 
> ns16550.h header resulting in a warning on some 4xx platforms:
>
> [stefan at kubuntu u-boot (master)]$ ./MAKEALL ml300
> Configuring for ml300 board...
> In file included from serial.c:53:
> /home/stefan/git/u-boot/u-boot/include/ns16550.h:151:1: warning: "MSR_RI" 
> redefined
> In file included from serial.c:41:
> /home/stefan/git/u-boot/u-boot/include/asm/processor.h:48:1: warning: this is 
> the location of the previous definition
>
> I suggest to either remove this MSI_RI from the header again (it doesn't seem 
> to be used here) or rename it.

Ok, so much for the plan to add the defines not bit by bit as needed,
but register-wise, while we're there.

I actually would prefer to use UART_MSR_RI, as this is a UART thingy
rather than to remove the define as we surely use the register, so I
feel it worthwhile to have the whole definition on board.

Let me cook up a rename for the UART stuff..

Cheers
  Detlev

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