Merge branches 'ib-mfd-clk-4.6', 'ib-mfd-input-iio-4.6',...

Merge branches 'ib-mfd-clk-4.6', 'ib-mfd-input-iio-4.6', 'ib-mfd-regulator-4.6' and 'ib-mfd-regulator-gpio-4.6' into ibs-for-mfd-merged