ab3100: fix off-by-one value range checking for voltage selector
We use voltage selector as an array index for typ_voltages. Thus the valid range for voltage selector should be 0..voltages_len-1. Signed-off-by: NAxel Lin <axel.lin@gmail.com> Acked-by: NMark Brown <broonie@opensource.wolfsonmicro.com> Acked-by: NLinus Walleij <linus.walleij@stericsson.com> Signed-off-by: NLiam Girdwood <lrg@slimlogic.co.uk>
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