[ppc patch] fix grub_ofconsole_cls on Old World

[Hollis Blanchard]

Echoing ^L to the console unfortunately doesn't seem to clear the 
screen on my Old World system. This works around that using the "clear 
screen" ANSI code, followed by gotoxy(0,0).

I also needed to correct a bug in grub_ofconsole_gotoxy before that 
would work. ANSI rows/columns are 1-based, so gotoxy(0, 0) should go to 
ANSI row 1 column 1.

2004-09-13      Hollis Blanchard        <address@hidden>

	* term/powerpc/ieee1275/ofconsole.c (grub_ofconsole_gotoxy): y+1 
instead of y-1.
        (grub_ofconsole_cls): instead of ^L, use an ANSI escape sequence and
        grub_gotoxy(0,0) manually.

-Hollis

06-ppc-ofconsole-cls.diff
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