AB8500 versions preceding 2.0 were only used internally by ST-Ericsson
and are not supported anymore.  This patch drops all v1.0 and v1.1
support code.
Acked-by: NLinus Walleij <linus.walleij@linaro.org>
Signed-off-by: NFabio Baltieri <fabio.baltieri@linaro.org>
Signed-off-by: NFelipe Balbi <balbi@ti.com>