sisfb: replace setSISIDXREG with SiS_SetRegANDOR

Replace setSISIDXREG() with SiS_SetRegANDOR().

Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Cc: Thomas Winischhofer <thomas@winischhofer.net>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
1 file changed