staging: xgifb: delete unsupported chip types

The probe routine will fail if the chip is other than XG40..XG27, so
the other types can be dropped.

Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2 files changed