ipl: Speed up printing the IPL menu on C8000 workstation

It turned out, that calling the IODC to print a char to the console
is incredibly slow when running on a C8000 workstation.

Speed it up a lot by printing as many chars at once per call to
firmware. Since new-line chars need to be replaced by \n\r,
break all strings at this char.

Signed-off-by: Helge Deller <deller@gmx.de>
1 file changed