arc: Remove bogus references to intel,qmsi-ss-{gpio,i2c}

The arc_iot.dtsi used "intel,qmsi-ss-gpio" and "intel,qmsi-ss-i2c"
compatiables, however we have no drivers for these and it seems wrong
that the ARC platform would utilize such compatiables.  Remove the
compatiable fields for now (proper one's can be added when there are I2C
and GPIO drivers for this platform).

Also remove the binding files associated with "intel,qmsi-ss-gpio" and
"intel,qmsi-ss-i2c" as nothing in tree utilizes them.

Fixes: 19227

Signed-off-by: Kumar Gala <kumar.gala@linaro.org>